| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 710 | 
                                    
                                    42.9%
                                 | 
| 2 | No | 542 | 
                                    
                                    32.8%
                                 | 
| 3 | I don't know | 402 | 
                                    
                                    24.3%
                                 | 
| Sysmiss | 18 |