| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 80 | 
                                    
                                    10.7%
                                 | 
| 2 | No | 650 | 
                                    
                                    86.7%
                                 | 
| 888 | Do not know | 20 | 
                                    
                                    2.7%
                                 | 
| Sysmiss | 3803 |