| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 175 | 
                                    
                                    0.6%
                                 | 
| 2 | NO | 30470 | 
                                    
                                    99.4%
                                 | 
| 9 | NO RESPONSE | 15 | 
                                    
                                    0%
                                 | 
| Sysmiss | 400 |