| Value | Category | 
                                    
                    
                        | 0 |  | 
                                    
                    
                        | 100 |  | 
                                    
                    
                        | 120 |  | 
                                    
                    
                        | 152 |  | 
                                    
                    
                        | 160 |  | 
                                    
                    
                        | 180 |  | 
                                    
                    
                        | 200 |  | 
                                    
                    
                        | 240 |  | 
                                    
                    
                        | 250 |  | 
                                    
                    
                        | 300 |  | 
                                    
                    
                        | 320 |  | 
                                    
                    
                        | 333 |  | 
                                    
                    
                        | 400 |  | 
                                    
                    
                        | 450 |  | 
                                    
                    
                        | 480 |  | 
                                    
                    
                        | 500 |  | 
                                    
                    
                        | 520 |  | 
                                    
                    
                        | 560 |  | 
                                    
                    
                        | 570 |  | 
                                    
                    
                        | 600 |  | 
                                    
                    
                        | 650 |  | 
                                    
                    
                        | 660 |  | 
                                    
                    
                        | 675 |  | 
                                    
                    
                        | 700 |  | 
                                    
                    
                        | 720 |  | 
                                    
                    
                        | 750 |  | 
                                    
                    
                        | 800 |  | 
                                    
                    
                        | 900 |  | 
                                    
                    
                        | 960 |  | 
                                    
                    
                        | 990 |  | 
                                    
                    
                        | 1000 |  | 
                                    
                    
                        | 1100 |  | 
                                    
                    
                        | 1120 |  | 
                                    
                    
                        | 1200 |  | 
                                    
                    
                        | 1300 |  | 
                                    
                    
                        | 1350 |  | 
                                    
                    
                        | 1440 |  | 
                                    
                    
                        | 1500 |  | 
                                    
                    
                        | 1550 |  | 
                                    
                    
                        | 1600 |  | 
                                    
                    
                        | 1650 |  | 
                                    
                    
                        | 1700 |  | 
                                    
                    
                        | 1750 |  | 
                                    
                    
                        | 1800 |  | 
                                    
                    
                        | 1890 |  | 
                                    
                    
                        | 1920 |  | 
                                    
                    
                        | 1980 |  | 
                                    
                    
                        | 2000 |  | 
                                    
                    
                        | 2040 |  | 
                                    
                    
                        | 2100 |  | 
                                    
                    
                        | 2250 |  | 
                                    
                    
                        | 2400 |  | 
                                    
                    
                        | 2500 |  | 
                                    
                    
                        | 2700 |  | 
                                    
                    
                        | 2800 |  | 
                                    
                    
                        | 3000 |  | 
                                    
                    
                        | 3190 |  | 
                                    
                    
                        | 3200 |  | 
                                    
                    
                        | 3300 |  | 
                                    
                    
                        | 3400 |  | 
                                    
                    
                        | 3500 |  | 
                                    
                    
                        | 3600 |  | 
                                    
                    
                        | 3700 |  | 
                                    
                    
                        | 3800 |  | 
                                    
                    
                        | 4000 |  | 
                                    
                    
                        | 4050 |  | 
                                    
                    
                        | 4100 |  | 
                                    
                    
                        | 4200 |  | 
                                    
                    
                        | 4300 |  | 
                                    
                    
                        | 4320 |  | 
                                    
                    
                        | 4500 |  | 
                                    
                    
                        | 4600 |  | 
                                    
                    
                        | 4800 |  | 
                                    
                    
                        | 5000 |  | 
                                    
                    
                        | 5400 |  | 
                                    
                    
                        | 5500 |  | 
                                    
                    
                        | 5600 |  | 
                                    
                    
                        | 5800 |  | 
                                    
                    
                        | 5900 |  | 
                                    
                    
                        | 5950 |  | 
                                    
                    
                        | 6000 |  | 
                                    
                    
                        | 6100 |  | 
                                    
                    
                        | 6220 |  | 
                                    
                    
                        | 6700 |  | 
                                    
                    
                        | 6750 |  | 
                                    
                    
                        | 6900 |  | 
                                    
                    
                        | 7000 |  | 
                                    
                    
                        | 7200 |  | 
                                    
                    
                        | 7500 |  | 
                                    
                    
                        | 8000 |  | 
                                    
                    
                        | 8100 |  | 
                                    
                    
                        | 8400 |  | 
                                    
                    
                        | 8500 |  | 
                                    
                    
                        | 8900 |  | 
                                    
                    
                        | 9000 |  | 
                                    
                    
                        | 9500 |  | 
                                    
                    
                        | 10000 |  | 
                                    
                    
                        | 10500 |  | 
                                    
                    
                        | 10800 |  | 
                                    
                    
                        | 10960 |  | 
                                    
                    
                        | 11600 |  | 
                                    
                    
                        | 11900 |  | 
                                    
                    
                        | 12000 |  | 
                                    
                    
                        | 12500 |  | 
                                    
                    
                        | 13000 |  | 
                                    
                    
                        | 14000 |  | 
                                    
                    
                        | 14400 |  | 
                                    
                    
                        | 15000 |  | 
                                    
                    
                        | 15800 |  | 
                                    
                    
                        | 16000 |  | 
                                    
                    
                        | 17000 |  | 
                                    
                    
                        | 18000 |  | 
                                    
                    
                        | 19600 |  | 
                                    
                    
                        | 20000 |  | 
                                    
                    
                        | 21000 |  | 
                                    
                    
                        | 21600 |  | 
                                    
                    
                        | 23000 |  | 
                                    
                    
                        | 24000 |  | 
                                    
                    
                        | 25000 |  | 
                                    
                    
                        | 26000 |  | 
                                    
                    
                        | 30000 |  | 
                                    
                    
                        | 32000 |  | 
                                    
                    
                        | 34000 |  | 
                                    
                    
                        | 35000 |  | 
                                    
                    
                        | 36000 |  | 
                                    
                    
                        | 38000 |  | 
                                    
                    
                        | 40000 |  | 
                                    
                    
                        | 45000 |  | 
                                    
                    
                        | 47600 |  | 
                                    
                    
                        | 48000 |  | 
                                    
                    
                        | 50000 |  | 
                                    
                    
                        | 51350 |  | 
                                    
                    
                        | 60000 |  | 
                                    
                    
                        | 67000 |  | 
                                    
                    
                        | 70000 |  | 
                                    
                    
                        | 72000 |  | 
                                    
                    
                        | 90000 |  | 
                                    
                    
                        | 100000 |  | 
                                    
                    
                        | 120000 |  | 
                                    
                    
                        | 140000 |  | 
                                    
                    
                        | 150000 |  | 
                                    
                    
                        | 450000 |  | 
                                    
                    
                        | 2147483625 | don't know | 
                                    
                    
                        | 2147483639 | refusal | 
                                    
                    
                        | 2147483640 | skipped | 
                                    
                    
                        | 2147483645 | .x. censored | 
                                    
                    
                        | 1000001 | .. | 
                                    
                    
                        | 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.