| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 5995 | 
                                    
                                    28.6%
                                 | 
| 2 | NO | 14867 | 
                                    
                                    70.9%
                                 | 
| 9 | NO RESPONSE | 112 | 
                                    
                                    0.5%
                                 | 
| Sysmiss | 406 |