| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 3047 | 
                                    
                                    86.1%
                                 | 
| 2 | yes, but with difficulty | 278 | 
                                    
                                    7.9%
                                 | 
| 3 | no | 214 | 
                                    
                                    6%
                                 | 
| Sysmiss | 16 |