| Value | 
                    Category | 
                                                                            
                                    
                    
                        | 000 | 
                        0 hours  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 001 | 
                        1 hour  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 002 | 
                        2 hours  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 003 | 
                        3  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 004 | 
                        4  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 005 | 
                        5  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 006 | 
                        6  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 007 | 
                        7  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 008 | 
                        8  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 009 | 
                        9  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 010 | 
                        10  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 011 | 
                        11  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 012 | 
                        12  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 013 | 
                        13  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 014 | 
                        14  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 015 | 
                        15  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 016 | 
                        16  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 017 | 
                        17  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 018 | 
                        18  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 019 | 
                        19  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 020 | 
                        20  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 021 | 
                        21  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 022 | 
                        22  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 023 | 
                        23  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 024 | 
                        24  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 025 | 
                        25  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 026 | 
                        26  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 027 | 
                        27  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 028 | 
                        28  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 029 | 
                        29  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 030 | 
                        30  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 031 | 
                        31  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 032 | 
                        32  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 033 | 
                        33  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 034 | 
                        34  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 035 | 
                        35  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 036 | 
                        36  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 037 | 
                        37  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 038 | 
                        38  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 039 | 
                        39  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 040 | 
                        40  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 041 | 
                        41  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 042 | 
                        42  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 043 | 
                        43  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 044 | 
                        44  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 045 | 
                        45  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 046 | 
                        46  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 047 | 
                        47  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 048 | 
                        48  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 049 | 
                        49  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 050 | 
                        50  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 051 | 
                        51  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 052 | 
                        52  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 053 | 
                        53  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 054 | 
                        54  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 055 | 
                        55  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 056 | 
                        56  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 057 | 
                        57  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 058 | 
                        58  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 059 | 
                        59  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 060 | 
                        60  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 061 | 
                        61  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 062 | 
                        62  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 063 | 
                        63  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 064 | 
                        64  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 065 | 
                        65  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 066 | 
                        66  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 067 | 
                        67  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 068 | 
                        68  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 069 | 
                        69  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 070 | 
                        70  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 071 | 
                        71  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 072 | 
                        72  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 073 | 
                        73  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 074 | 
                        74  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 075 | 
                        75  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 076 | 
                        76  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 077 | 
                        77  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 078 | 
                        78  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 079 | 
                        79  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 080 | 
                        80  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 081 | 
                        81  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 082 | 
                        82  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 083 | 
                        83  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 084 | 
                        84  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 085 | 
                        85  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 086 | 
                        86  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 087 | 
                        87  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 088 | 
                        88  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 089 | 
                        89  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 090 | 
                        90  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 091 | 
                        91  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 092 | 
                        92  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 093 | 
                        93  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 094 | 
                        94  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 095 | 
                        95  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 096 | 
                        96  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 097 | 
                        97  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 098 | 
                        98  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 099 | 
                        99  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 100 | 
                        100  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 101 | 
                        101  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 102 | 
                        102  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 103 | 
                        103  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 104 | 
                        104  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 105 | 
                        105  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 106 | 
                        106  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 107 | 
                        107  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 108 | 
                        108  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 109 | 
                        109  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 110 | 
                        110  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 111 | 
                        111  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 112 | 
                        112  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 113 | 
                        113  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 114 | 
                        114  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 115 | 
                        115  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 116 | 
                        116  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 117 | 
                        117  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 118 | 
                        118  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 119 | 
                        119  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 120 | 
                        120  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 121 | 
                        121  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 122 | 
                        122  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 123 | 
                        123  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 124 | 
                        124  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 125 | 
                        125  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 126 | 
                        126  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 127 | 
                        127  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 128 | 
                        128  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 129 | 
                        129  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 130 | 
                        130  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 131 | 
                        131  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 132 | 
                        132  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 133 | 
                        133  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 134 | 
                        134  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 135 | 
                        135  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 136 | 
                        136  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 137 | 
                        137  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 138 | 
                        138  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 139 | 
                        139  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 140 | 
                        140+ hours  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 998 | 
                        Unknown  | 
                        
                            
                        
                        
                        
                        
                            
                    
                                    
                    
                        | 999 | 
                        NIU (not in universe)  | 
                        
                            
                        
                        
                        
                        
                            
                    
                            
            Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.