| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes-Spenteneously | 63 | 
                                
                                3.2%
                             | 
| 2 | Yes-Probed | 831 | 
                                
                                42.1%
                             | 
| 3 | No | 1074 | 
                                
                                54.4%
                             | 
| 9 | N/A | 5 | 
                                
                                0.3%
                             | 
| Sysmiss | 24 |