| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 3109 | 
                                    
                                    94.3%
                                 | 
| 2 | 1-2 | 113 | 
                                    
                                    3.4%
                                 | 
| 3 | 3-4 | 25 | 
                                    
                                    0.8%
                                 | 
| 4 | 5-6 | 18 | 
                                    
                                    0.5%
                                 | 
| 5 | 7 | 31 | 
                                    
                                    0.9%
                                 | 
| Sysmiss | 17 |