| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 49 | 
                                    
                                    0.8%
                                 | 
| -8 | Refused | 13 | 
                                    
                                    0.2%
                                 | 
| -5 | Not Applicable | 23 | 
                                    
                                    0.4%
                                 | 
| -3 | Missing | 147 | 
                                    
                                    2.3%
                                 | 
| 0 | 6121 | 
                                    
                                    95.7%
                                 | |
| 2 | 1 | 
                                    
                                    0%
                                 | |
| 3 | 4 | 
                                    
                                    0.1%
                                 | |
| 6 | 1 | 
                                    
                                    0%
                                 | |
| 9 | 1 | 
                                    
                                    0%
                                 | |
| 10 | 6 | 
                                    
                                    0.1%
                                 | |
| 13 | 1 | 
                                    
                                    0%
                                 | |
| 15 | 2 | 
                                    
                                    0%
                                 | |
| 20 | 6 | 
                                    
                                    0.1%
                                 | |
| 25 | 1 | 
                                    
                                    0%
                                 | |
| 28 | 1 | 
                                    
                                    0%
                                 | |
| 30 | 5 | 
                                    
                                    0.1%
                                 | |
| 35 | 1 | 
                                    
                                    0%
                                 | |
| 40 | 6 | 
                                    
                                    0.1%
                                 | |
| 45 | 1 | 
                                    
                                    0%
                                 | |
| 50 | 1 | 
                                    
                                    0%
                                 | |
| 60 | 2 | 
                                    
                                    0%
                                 | |
| Sysmiss | 903 |