| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 0 | 
                                    
                                    0%
                                 | 
| 1 | yes | 25 | 
                                    
                                    65.8%
                                 | 
| 2 | no | 13 | 
                                    
                                    34.2%
                                 | 
| Sysmiss | 917 |