| Value | Category | Cases | |
|---|---|---|---|
| 0 | 506 | 
                                    
                                    27.4%
                                 | |
| 1 | 1192 | 
                                    
                                    64.5%
                                 | |
| 2 | 59 | 
                                    
                                    3.2%
                                 | |
| 3 | 90 | 
                                    
                                    4.9%
                                 | |
| Sysmiss | 7628 |