| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes-Spenteneously | 671 | 
                                
                                34%
                             | 
| 2 | Yes-Probed | 870 | 
                                
                                44.1%
                             | 
| 3 | No | 425 | 
                                
                                21.5%
                             | 
| 9 | N/A | 7 | 
                                
                                0.4%
                             | 
| Sysmiss | 24 |