| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 0 | 
                                    
                                    0%
                                 | 
| -7 | not applicable | 6 | 
                                    
                                    6.3%
                                 | 
| 1 | yes | 16 | 
                                    
                                    16.7%
                                 | 
| 2 | no | 74 | 
                                    
                                    77.1%
                                 | 
| Sysmiss | 859 |