| Value | Category | 
                                    
                    
                        | -9 | Don't Know | 
                                    
                    
                        | -8 | Refused | 
                                    
                    
                        | -5 | Not Applicable | 
                                    
                    
                        | -3 | Missing | 
                                    
                    
                        | 0 |  | 
                                    
                    
                        | 1 |  | 
                                    
                    
                        | 2 |  | 
                                    
                    
                        | 3 |  | 
                                    
                    
                        | 5 |  | 
                                    
                    
                        | 6 |  | 
                                    
                    
                        | 9 |  | 
                                    
                    
                        | 10 |  | 
                                    
                    
                        | 12 |  | 
                                    
                    
                        | 13 |  | 
                                    
                    
                        | 15 |  | 
                                    
                    
                        | 17 |  | 
                                    
                    
                        | 18 |  | 
                                    
                    
                        | 20 |  | 
                                    
                    
                        | 21 |  | 
                                    
                    
                        | 22 |  | 
                                    
                    
                        | 24 |  | 
                                    
                    
                        | 25 |  | 
                                    
                    
                        | 26 |  | 
                                    
                    
                        | 30 |  | 
                                    
                    
                        | 31 |  | 
                                    
                    
                        | 35 |  | 
                                    
                    
                        | 38 |  | 
                                    
                    
                        | 40 |  | 
                                    
                    
                        | 45 |  | 
                                    
                    
                        | 50 |  | 
                                    
                    
                        | 52 |  | 
                                    
                    
                        | 53 |  | 
                                    
                    
                        | 55 |  | 
                                    
                    
                        | 60 |  | 
                                    
                    
                        | 65 |  | 
                                    
                    
                        | 66 |  | 
                                    
                    
                        | 70 |  | 
                                    
                    
                        | 75 |  | 
                                    
                    
                        | 79 |  | 
                                    
                    
                        | 80 |  | 
                                    
                    
                        | 85 |  | 
                                    
                    
                        | 86 |  | 
                                    
                    
                        | 87 |  | 
                                    
                    
                        | 90 |  | 
                                    
                    
                        | 93 |  | 
                                    
                    
                        | 95 |  | 
                                    
                    
                        | 99 |  | 
                                    
                    
                        | 100 |  | 
                                    
                    
                        | 101 |  | 
                                    
                    
                        | 102 |  | 
                                    
                    
                        | 107 |  | 
                                    
                    
                        | 110 |  | 
                                    
                    
                        | 114 |  | 
                                    
                    
                        | 117 |  | 
                                    
                    
                        | 118 |  | 
                                    
                    
                        | 120 |  | 
                                    
                    
                        | 123 |  | 
                                    
                    
                        | 125 |  | 
                                    
                    
                        | 130 |  | 
                                    
                    
                        | 134 |  | 
                                    
                    
                        | 135 |  | 
                                    
                    
                        | 140 |  | 
                                    
                    
                        | 144 |  | 
                                    
                    
                        | 145 |  | 
                                    
                    
                        | 150 |  | 
                                    
                    
                        | 160 |  | 
                                    
                    
                        | 163 |  | 
                                    
                    
                        | 165 |  | 
                                    
                    
                        | 170 |  | 
                                    
                    
                        | 172 |  | 
                                    
                    
                        | 174 |  | 
                                    
                    
                        | 175 |  | 
                                    
                    
                        | 180 |  | 
                                    
                    
                        | 181 |  | 
                                    
                    
                        | 185 |  | 
                                    
                    
                        | 187 |  | 
                                    
                    
                        | 189 |  | 
                                    
                    
                        | 190 |  | 
                                    
                    
                        | 191 |  | 
                                    
                    
                        | 192 |  | 
                                    
                    
                        | 193 |  | 
                                    
                    
                        | 195 |  | 
                                    
                    
                        | 199 |  | 
                                    
                    
                        | 200 |  | 
                                    
                    
                        | 203 |  | 
                                    
                    
                        | 205 |  | 
                                    
                    
                        | 210 |  | 
                                    
                    
                        | 212 |  | 
                                    
                    
                        | 215 |  | 
                                    
                    
                        | 220 |  | 
                                    
                    
                        | 225 |  | 
                                    
                    
                        | 230 |  | 
                                    
                    
                        | 235 |  | 
                                    
                    
                        | 240 |  | 
                                    
                    
                        | 245 |  | 
                                    
                    
                        | 250 |  | 
                                    
                    
                        | 260 |  | 
                                    
                    
                        | 264 |  | 
                                    
                    
                        | 265 |  | 
                                    
                    
                        | 270 |  | 
                                    
                    
                        | 273 |  | 
                                    
                    
                        | 275 |  | 
                                    
                    
                        | 279 |  | 
                                    
                    
                        | 280 |  | 
                                    
                    
                        | 290 |  | 
                                    
                    
                        | 295 |  | 
                                    
                    
                        | 300 |  | 
                                    
                    
                        | 310 |  | 
                                    
                    
                        | 320 |  | 
                                    
                    
                        | 330 |  | 
                                    
                    
                        | 340 |  | 
                                    
                    
                        | 341 |  | 
                                    
                    
                        | 342 |  | 
                                    
                    
                        | 350 |  | 
                                    
                    
                        | 360 |  | 
                                    
                    
                        | 370 |  | 
                                    
                    
                        | 375 |  | 
                                    
                    
                        | 377 |  | 
                                    
                    
                        | 380 |  | 
                                    
                    
                        | 382 |  | 
                                    
                    
                        | 390 |  | 
                                    
                    
                        | 400 |  | 
                                    
                    
                        | 415 |  | 
                                    
                    
                        | 420 |  | 
                                    
                    
                        | 430 |  | 
                                    
                    
                        | 440 |  | 
                                    
                    
                        | 450 |  | 
                                    
                    
                        | 480 |  | 
                                    
                    
                        | 500 |  | 
                                    
                    
                        | 538 |  | 
                                    
                    
                        | 545 |  | 
                                    
                    
                        | 560 |  | 
                                    
                    
                        | 561 |  | 
                                    
                    
                        | 570 |  | 
                                    
                    
                        | 600 |  | 
                                    
                    
                        | 657 |  | 
                                    
                    
                        | 700 |  | 
                                    
                    
                        | 713 |  | 
                                    
                    
                        | 750 |  | 
                                    
                    
                        | 800 |  | 
                                    
                    
                        | 847 |  | 
                                    
                    
                        | 880 |  | 
                                    
                    
                        | 900 |  | 
                                    
                    
                        | 1000 |  | 
                                    
                    
                        | 1075 |  | 
                                    
                    
                        | 1188 |  | 
                                    
                    
                        | 1200 |  | 
                                    
                    
                        | 1280 |  | 
                                    
                    
                        | 1300 |  | 
                                    
                    
                        | 1340 |  | 
                                    
                    
                        | 1500 |  | 
                                    
                    
                        | 1700 |  | 
                                    
                    
                        | 1800 |  | 
                                    
                    
                        | 2000 |  | 
                                    
                    
                        | 2500 |  | 
                                    
                    
                        | 2600 |  | 
                                    
                    
                        | 3120 |  | 
                                    
                    
                        | 3200 |  | 
                                    
                    
                        | 3487 |  | 
                                    
                    
                        | 3500 |  | 
                                    
                    
                        | 4900 |  | 
                                    
                    
                        | 5000 |  | 
                                    
                    
                        | Sysmiss |  | 
                            
            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.