| Value | Category | 
                                    
                    
                        | -9 | Don't Know | 
                                    
                    
                        | -8 | Refused | 
                                    
                    
                        | -5 | Not Applicable | 
                                    
                    
                        | -3 | Missing | 
                                    
                    
                        | 0 |  | 
                                    
                    
                        | 5 |  | 
                                    
                    
                        | 10 |  | 
                                    
                    
                        | 11 |  | 
                                    
                    
                        | 20 |  | 
                                    
                    
                        | 30 |  | 
                                    
                    
                        | 35 |  | 
                                    
                    
                        | 40 |  | 
                                    
                    
                        | 50 |  | 
                                    
                    
                        | 55 |  | 
                                    
                    
                        | 60 |  | 
                                    
                    
                        | 62 |  | 
                                    
                    
                        | 70 |  | 
                                    
                    
                        | 90 |  | 
                                    
                    
                        | 99 |  | 
                                    
                    
                        | 100 |  | 
                                    
                    
                        | 110 |  | 
                                    
                    
                        | 120 |  | 
                                    
                    
                        | 130 |  | 
                                    
                    
                        | 145 |  | 
                                    
                    
                        | 150 |  | 
                                    
                    
                        | 151 |  | 
                                    
                    
                        | 160 |  | 
                                    
                    
                        | 161 |  | 
                                    
                    
                        | 180 |  | 
                                    
                    
                        | 190 |  | 
                                    
                    
                        | 195 |  | 
                                    
                    
                        | 200 |  | 
                                    
                    
                        | 220 |  | 
                                    
                    
                        | 240 |  | 
                                    
                    
                        | 245 |  | 
                                    
                    
                        | 250 |  | 
                                    
                    
                        | 255 |  | 
                                    
                    
                        | 260 |  | 
                                    
                    
                        | 278 |  | 
                                    
                    
                        | 280 |  | 
                                    
                    
                        | 290 |  | 
                                    
                    
                        | 300 |  | 
                                    
                    
                        | 320 |  | 
                                    
                    
                        | 330 |  | 
                                    
                    
                        | 350 |  | 
                                    
                    
                        | 360 |  | 
                                    
                    
                        | 375 |  | 
                                    
                    
                        | 380 |  | 
                                    
                    
                        | 400 |  | 
                                    
                    
                        | 410 |  | 
                                    
                    
                        | 440 |  | 
                                    
                    
                        | 450 |  | 
                                    
                    
                        | 480 |  | 
                                    
                    
                        | 500 |  | 
                                    
                    
                        | 540 |  | 
                                    
                    
                        | 550 |  | 
                                    
                    
                        | 590 |  | 
                                    
                    
                        | 600 |  | 
                                    
                    
                        | 700 |  | 
                                    
                    
                        | 710 |  | 
                                    
                    
                        | 750 |  | 
                                    
                    
                        | 800 |  | 
                                    
                    
                        | 900 |  | 
                                    
                    
                        | 1000 |  | 
                                    
                    
                        | 1200 |  | 
                                    
                    
                        | 1400 |  | 
                                    
                    
                        | 1417 |  | 
                                    
                    
                        | 1500 |  | 
                                    
                    
                        | 2500 |  | 
                                    
                    
                        | 3200 |  | 
                                    
                    
                        | 4000 |  | 
                                    
                    
                        | 5000 |  | 
                                    
                    
                        | 6000 |  | 
                                    
                    
                        | 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.