| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 2290 | 
                                
                                97.2%
                             | 
| 1 | Yes | 2 | 
                                
                                0.1%
                             | 
| 5 | missing | 0 | 
                                
                                0%
                             | 
| 8 | dtk | 24 | 
                                
                                1%
                             | 
| 9 | na | 39 | 
                                
                                1.7%
                             | 
| Sysmiss | 50 |