| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 1 | 
                                    
                                    0.2%
                                 | 
| 2 | NO | 611 | 
                                    
                                    98.9%
                                 | 
| 97 | DON?T KNOW | 6 | 
                                    
                                    1%
                                 | 
| Sysmiss | 132 |