| Value | Category | 
                                    
                    
                        | -9 | Don't know | 
                                    
                    
                        | -8 | Refused | 
                                    
                    
                        | -5 | Not Applicable | 
                                    
                    
                        | -3 | Missing | 
                                    
                    
                        | 1 |  | 
                                    
                    
                        | 8 |  | 
                                    
                    
                        | 10 |  | 
                                    
                    
                        | 15 |  | 
                                    
                    
                        | 20 |  | 
                                    
                    
                        | 21 |  | 
                                    
                    
                        | 29 |  | 
                                    
                    
                        | 30 |  | 
                                    
                    
                        | 35 |  | 
                                    
                    
                        | 40 |  | 
                                    
                    
                        | 48 |  | 
                                    
                    
                        | 50 |  | 
                                    
                    
                        | 56 |  | 
                                    
                    
                        | 70 |  | 
                                    
                    
                        | 71 |  | 
                                    
                    
                        | 72 |  | 
                                    
                    
                        | 80 |  | 
                                    
                    
                        | 90 |  | 
                                    
                    
                        | 100 |  | 
                                    
                    
                        | 101 |  | 
                                    
                    
                        | 120 |  | 
                                    
                    
                        | 139 |  | 
                                    
                    
                        | 150 |  | 
                                    
                    
                        | 160 |  | 
                                    
                    
                        | 170 |  | 
                                    
                    
                        | 180 |  | 
                                    
                    
                        | 190 |  | 
                                    
                    
                        | 200 |  | 
                                    
                    
                        | 210 |  | 
                                    
                    
                        | 220 |  | 
                                    
                    
                        | 230 |  | 
                                    
                    
                        | 250 |  | 
                                    
                    
                        | 260 |  | 
                                    
                    
                        | 270 |  | 
                                    
                    
                        | 280 |  | 
                                    
                    
                        | 285 |  | 
                                    
                    
                        | 290 |  | 
                                    
                    
                        | 299 |  | 
                                    
                    
                        | 300 |  | 
                                    
                    
                        | 301 |  | 
                                    
                    
                        | 310 |  | 
                                    
                    
                        | 316 |  | 
                                    
                    
                        | 320 |  | 
                                    
                    
                        | 350 |  | 
                                    
                    
                        | 355 |  | 
                                    
                    
                        | 360 |  | 
                                    
                    
                        | 370 |  | 
                                    
                    
                        | 380 |  | 
                                    
                    
                        | 400 |  | 
                                    
                    
                        | 410 |  | 
                                    
                    
                        | 420 |  | 
                                    
                    
                        | 440 |  | 
                                    
                    
                        | 450 |  | 
                                    
                    
                        | 475 |  | 
                                    
                    
                        | 500 |  | 
                                    
                    
                        | 525 |  | 
                                    
                    
                        | 550 |  | 
                                    
                    
                        | 570 |  | 
                                    
                    
                        | 580 |  | 
                                    
                    
                        | 600 |  | 
                                    
                    
                        | 620 |  | 
                                    
                    
                        | 650 |  | 
                                    
                    
                        | 670 |  | 
                                    
                    
                        | 680 |  | 
                                    
                    
                        | 699 |  | 
                                    
                    
                        | 700 |  | 
                                    
                    
                        | 710 |  | 
                                    
                    
                        | 750 |  | 
                                    
                    
                        | 780 |  | 
                                    
                    
                        | 800 |  | 
                                    
                    
                        | 810 |  | 
                                    
                    
                        | 820 |  | 
                                    
                    
                        | 840 |  | 
                                    
                    
                        | 850 |  | 
                                    
                    
                        | 860 |  | 
                                    
                    
                        | 900 |  | 
                                    
                    
                        | 910 |  | 
                                    
                    
                        | 920 |  | 
                                    
                    
                        | 950 |  | 
                                    
                    
                        | 1000 |  | 
                                    
                    
                        | 1050 |  | 
                                    
                    
                        | 1100 |  | 
                                    
                    
                        | 1105 |  | 
                                    
                    
                        | 1150 |  | 
                                    
                    
                        | 1200 |  | 
                                    
                    
                        | 1250 |  | 
                                    
                    
                        | 1300 |  | 
                                    
                    
                        | 1350 |  | 
                                    
                    
                        | 1400 |  | 
                                    
                    
                        | 1450 |  | 
                                    
                    
                        | 1500 |  | 
                                    
                    
                        | 1600 |  | 
                                    
                    
                        | 1700 |  | 
                                    
                    
                        | 1750 |  | 
                                    
                    
                        | 1800 |  | 
                                    
                    
                        | 1830 |  | 
                                    
                    
                        | 1900 |  | 
                                    
                    
                        | 1950 |  | 
                                    
                    
                        | 2000 |  | 
                                    
                    
                        | 2050 |  | 
                                    
                    
                        | 2200 |  | 
                                    
                    
                        | 2215 |  | 
                                    
                    
                        | 2300 |  | 
                                    
                    
                        | 2350 |  | 
                                    
                    
                        | 2400 |  | 
                                    
                    
                        | 2500 |  | 
                                    
                    
                        | 2600 |  | 
                                    
                    
                        | 3000 |  | 
                                    
                    
                        | 3100 |  | 
                                    
                    
                        | 3250 |  | 
                                    
                    
                        | 3360 |  | 
                                    
                    
                        | 3420 |  | 
                                    
                    
                        | 3500 |  | 
                                    
                    
                        | 3600 |  | 
                                    
                    
                        | 4000 |  | 
                                    
                    
                        | 4400 |  | 
                                    
                    
                        | 4500 |  | 
                                    
                    
                        | 4600 |  | 
                                    
                    
                        | 5000 |  | 
                                    
                    
                        | 5185 |  | 
                                    
                    
                        | 5200 |  | 
                                    
                    
                        | 5300 |  | 
                                    
                    
                        | 5500 |  | 
                                    
                    
                        | 5505 |  | 
                                    
                    
                        | 10000 |  | 
                                    
                    
                        | 20210 |  | 
                                    
                    
                        | 72000 |  | 
                                    
                    
                        | 130000 |  | 
                                    
                    
                        | 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.