| Value | Category | Cases | |
|---|---|---|---|
| 1 | Specify | 12 | 
                                    
                                    0.6%
                                 | 
| 3 | Same | 1889 | 
                                    
                                    96.7%
                                 | 
| 8 | DK | 53 | 
                                    
                                    2.7%
                                 | 
| Sysmiss | 22990 |