| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 20 | 
                                
                                3.7%
                             | 
| 2 | No | 521 | 
                                
                                96.3%
                             | 
| 8 | D/K | 0 | 
                                
                                0%
                             | 
| 9 | N/A | 0 | 
                                
                                0%
                             | 
| Sysmiss | 1456 |