| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not acceptable | 77 | 
                                    
                                    5.7%
                                 | 
| 1 | Acceptable | 1244 | 
                                    
                                    92.6%
                                 | 
| 8 | Don't know | 23 | 
                                    
                                    1.7%
                                 |