| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 1 | 
                                    
                                    1%
                                 | 
| 1 | yes | 38 | 
                                    
                                    37.6%
                                 | 
| 2 | no | 62 | 
                                    
                                    61.4%
                                 | 
| Sysmiss | 854 |