| Value | Category | Cases | |
|---|---|---|---|
| 1 | Average | 16 | 
                                    
                                    3.3%
                                 | 
| 2 | Not Useful | 2 | 
                                    
                                    0.4%
                                 | 
| 3 | Useful | 353 | 
                                    
                                    72.2%
                                 | 
| 4 | Very Useful | 118 | 
                                    
                                    24.1%
                                 | 
| Sysmiss | 1797 |