| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 978 | 
                                    
                                    97.8%
                                 | 
| 2 | yes, but with difficulty | 18 | 
                                    
                                    1.8%
                                 | 
| 3 | no | 4 | 
                                    
                                    0.4%
                                 |