| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 2845 | 
                                    
                                    80.4%
                                 | 
| 2 | yes, but with difficulty | 269 | 
                                    
                                    7.6%
                                 | 
| 3 | no | 425 | 
                                    
                                    12%
                                 | 
| Sysmiss | 16 |