| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 2876 | 
                                    
                                    87.7%
                                 | 
| 2 | 1 to 2 | 254 | 
                                    
                                    7.7%
                                 | 
| 3 | 3 to 4 | 68 | 
                                    
                                    2.1%
                                 | 
| 4 | 5 to 6 | 48 | 
                                    
                                    1.5%
                                 | 
| 5 | 7 | 32 | 
                                    
                                    1%
                                 | 
| Sysmiss | 35 |