| Value | Category | Cases | |
|---|---|---|---|
| 1 | < 0.5 | 974 | 
                                    
                                    81.2%
                                 | 
| 2 | > 1 | 198 | 
                                    
                                    16.5%
                                 | 
| 3 | 0.6 - 1 | 28 | 
                                    
                                    2.3%
                                 |