| Value | Category | Cases | |
|---|---|---|---|
| 1 | average | 244 | 
                                    
                                    54.8%
                                 | 
| 2 | complete | 14 | 
                                    
                                    3.1%
                                 | 
| 3 | high | 42 | 
                                    
                                    9.4%
                                 | 
| 4 | low | 145 | 
                                    
                                    32.6%
                                 | 
| Missing value | 982 |