| Value | Category | Cases | |
|---|---|---|---|
| 1 | Good | 70 | 
                                    
                                    13.5%
                                 | 
| 2 | Usable | 259 | 
                                    
                                    49.9%
                                 | 
| 3 | Poor | 190 | 
                                    
                                    36.6%
                                 | 
| Sysmiss | 236 |