| Value | Category | Cases | |
|---|---|---|---|
| 0 | 585 | 
                                    
                                    17.6%
                                 | |
| 1 | 64 | 
                                    
                                    1.9%
                                 | |
| 2 | 179 | 
                                    
                                    5.4%
                                 | |
| 3 | 277 | 
                                    
                                    8.3%
                                 | |
| 4 | 325 | 
                                    
                                    9.8%
                                 | |
| 5 | 356 | 
                                    
                                    10.7%
                                 | |
| 6 | 301 | 
                                    
                                    9%
                                 | |
| 7 | 1242 | 
                                    
                                    37.3%
                                 | |
| Missing value | 14 |