| Value | Category | 
                                    
                    
                        | -9 | Don't Know | 
                                    
                    
                        | -8 | Refused | 
                                    
                    
                        | -5 | Not Applicable | 
                                    
                    
                        | -3 | Missing | 
                                    
                    
                        | 0 |  | 
                                    
                    
                        | 20 |  | 
                                    
                    
                        | 30 |  | 
                                    
                    
                        | 34 |  | 
                                    
                    
                        | 45 |  | 
                                    
                    
                        | 47 |  | 
                                    
                    
                        | 70 |  | 
                                    
                    
                        | 90 |  | 
                                    
                    
                        | 100 |  | 
                                    
                    
                        | 110 |  | 
                                    
                    
                        | 120 |  | 
                                    
                    
                        | 130 |  | 
                                    
                    
                        | 135 |  | 
                                    
                    
                        | 140 |  | 
                                    
                    
                        | 145 |  | 
                                    
                    
                        | 150 |  | 
                                    
                    
                        | 155 |  | 
                                    
                    
                        | 156 |  | 
                                    
                    
                        | 160 |  | 
                                    
                    
                        | 170 |  | 
                                    
                    
                        | 179 |  | 
                                    
                    
                        | 180 |  | 
                                    
                    
                        | 185 |  | 
                                    
                    
                        | 188 |  | 
                                    
                    
                        | 195 |  | 
                                    
                    
                        | 200 |  | 
                                    
                    
                        | 202 |  | 
                                    
                    
                        | 206 |  | 
                                    
                    
                        | 210 |  | 
                                    
                    
                        | 230 |  | 
                                    
                    
                        | 236 |  | 
                                    
                    
                        | 240 |  | 
                                    
                    
                        | 250 |  | 
                                    
                    
                        | 260 |  | 
                                    
                    
                        | 265 |  | 
                                    
                    
                        | 269 |  | 
                                    
                    
                        | 278 |  | 
                                    
                    
                        | 279 |  | 
                                    
                    
                        | 283 |  | 
                                    
                    
                        | 288 |  | 
                                    
                    
                        | 289 |  | 
                                    
                    
                        | 290 |  | 
                                    
                    
                        | 300 |  | 
                                    
                    
                        | 320 |  | 
                                    
                    
                        | 325 |  | 
                                    
                    
                        | 329 |  | 
                                    
                    
                        | 340 |  | 
                                    
                    
                        | 350 |  | 
                                    
                    
                        | 360 |  | 
                                    
                    
                        | 364 |  | 
                                    
                    
                        | 365 |  | 
                                    
                    
                        | 371 |  | 
                                    
                    
                        | 380 |  | 
                                    
                    
                        | 385 |  | 
                                    
                    
                        | 392 |  | 
                                    
                    
                        | 400 |  | 
                                    
                    
                        | 417 |  | 
                                    
                    
                        | 420 |  | 
                                    
                    
                        | 430 |  | 
                                    
                    
                        | 435 |  | 
                                    
                    
                        | 438 |  | 
                                    
                    
                        | 440 |  | 
                                    
                    
                        | 450 |  | 
                                    
                    
                        | 465 |  | 
                                    
                    
                        | 466 |  | 
                                    
                    
                        | 469 |  | 
                                    
                    
                        | 479 |  | 
                                    
                    
                        | 480 |  | 
                                    
                    
                        | 500 |  | 
                                    
                    
                        | 512 |  | 
                                    
                    
                        | 530 |  | 
                                    
                    
                        | 550 |  | 
                                    
                    
                        | 559 |  | 
                                    
                    
                        | 560 |  | 
                                    
                    
                        | 570 |  | 
                                    
                    
                        | 598 |  | 
                                    
                    
                        | 600 |  | 
                                    
                    
                        | 620 |  | 
                                    
                    
                        | 625 |  | 
                                    
                    
                        | 626 |  | 
                                    
                    
                        | 630 |  | 
                                    
                    
                        | 650 |  | 
                                    
                    
                        | 674 |  | 
                                    
                    
                        | 675 |  | 
                                    
                    
                        | 680 |  | 
                                    
                    
                        | 700 |  | 
                                    
                    
                        | 730 |  | 
                                    
                    
                        | 734 |  | 
                                    
                    
                        | 735 |  | 
                                    
                    
                        | 750 |  | 
                                    
                    
                        | 760 |  | 
                                    
                    
                        | 770 |  | 
                                    
                    
                        | 800 |  | 
                                    
                    
                        | 821 |  | 
                                    
                    
                        | 850 |  | 
                                    
                    
                        | 870 |  | 
                                    
                    
                        | 880 |  | 
                                    
                    
                        | 890 |  | 
                                    
                    
                        | 900 |  | 
                                    
                    
                        | 935 |  | 
                                    
                    
                        | 950 |  | 
                                    
                    
                        | 952 |  | 
                                    
                    
                        | 980 |  | 
                                    
                    
                        | 1000 |  | 
                                    
                    
                        | 1015 |  | 
                                    
                    
                        | 1017 |  | 
                                    
                    
                        | 1050 |  | 
                                    
                    
                        | 1100 |  | 
                                    
                    
                        | 1200 |  | 
                                    
                    
                        | 1300 |  | 
                                    
                    
                        | 1400 |  | 
                                    
                    
                        | 1500 |  | 
                                    
                    
                        | 1560 |  | 
                                    
                    
                        | 1580 |  | 
                                    
                    
                        | 1600 |  | 
                                    
                    
                        | 1700 |  | 
                                    
                    
                        | 1800 |  | 
                                    
                    
                        | 2000 |  | 
                                    
                    
                        | 2200 |  | 
                                    
                    
                        | 2300 |  | 
                                    
                    
                        | 2350 |  | 
                                    
                    
                        | 2400 |  | 
                                    
                    
                        | 2500 |  | 
                                    
                    
                        | 2760 |  | 
                                    
                    
                        | 3000 |  | 
                                    
                    
                        | 3300 |  | 
                                    
                    
                        | 4000 |  | 
                                    
                    
                        | 4192 |  | 
                                    
                    
                        | 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.