| Value | Category | Cases | |
|---|---|---|---|
| 1 | Specify | 1515 | 
                                    
                                    34.7%
                                 | 
| 3 | Same | 1997 | 
                                    
                                    45.8%
                                 | 
| 8 | DK | 853 | 
                                    
                                    19.5%
                                 | 
| Sysmiss | 644 |