| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 8 | 
                                    
                                    1.2%
                                 | 
| 1 | Yes, fully | 397 | 
                                    
                                    61.6%
                                 | 
| 2 | Yes, partially | 112 | 
                                    
                                    17.4%
                                 | 
| 3 | No | 128 | 
                                    
                                    19.8%
                                 |