| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 | 
                                    
                                    2.8%
                                 | |
| 1 | 1 | 
                                    
                                    2.8%
                                 | |
| 2 | 1 | 
                                    
                                    2.8%
                                 | |
| 4 | 2 | 
                                    
                                    5.6%
                                 | |
| 6 | 1 | 
                                    
                                    2.8%
                                 | |
| 8 | 1 | 
                                    
                                    2.8%
                                 | |
| 9 | 1 | 
                                    
                                    2.8%
                                 | |
| 10 | 1 | 
                                    
                                    2.8%
                                 | |
| 11 | 1 | 
                                    
                                    2.8%
                                 | |
| 13 | 1 | 
                                    
                                    2.8%
                                 | |
| 15 | 3 | 
                                    
                                    8.3%
                                 | |
| 22 | 2 | 
                                    
                                    5.6%
                                 | |
| 30 | 2 | 
                                    
                                    5.6%
                                 | |
| 31 | 1 | 
                                    
                                    2.8%
                                 | |
| 32 | 1 | 
                                    
                                    2.8%
                                 | |
| 35 | 1 | 
                                    
                                    2.8%
                                 | |
| 38 | 1 | 
                                    
                                    2.8%
                                 | |
| 39 | 2 | 
                                    
                                    5.6%
                                 | |
| 40 | 1 | 
                                    
                                    2.8%
                                 | |
| 42 | 1 | 
                                    
                                    2.8%
                                 | |
| 43 | 1 | 
                                    
                                    2.8%
                                 | |
| 46 | 1 | 
                                    
                                    2.8%
                                 | |
| 50 | 1 | 
                                    
                                    2.8%
                                 | |
| 51 | 1 | 
                                    
                                    2.8%
                                 | |
| 54 | 1 | 
                                    
                                    2.8%
                                 | |
| 57 | 2 | 
                                    
                                    5.6%
                                 | |
| 88 | Don't know | 0 | 
                                    
                                    0%
                                 | 
| 99 | Missing | 3 | 
                                    
                                    8.3%
                                 | 
| Sysmiss | 966 |