| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 600 | 
                                    
                                    80.8%
                                 | 
| 2 | No | 133 | 
                                    
                                    17.9%
                                 | 
| 98 | DO NOT KNOW | 10 | 
                                    
                                    1.3%
                                 | 
| Sysmiss | 98 |