| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1371 | 
                                    
                                    41.2%
                                 | |
| 1 | 543 | 
                                    
                                    16.3%
                                 | |
| 2 | 520 | 
                                    
                                    15.6%
                                 | |
| 3 | 349 | 
                                    
                                    10.5%
                                 | |
| 4 | 213 | 
                                    
                                    6.4%
                                 | |
| 5 | 125 | 
                                    
                                    3.8%
                                 | |
| 6 | 49 | 
                                    
                                    1.5%
                                 | |
| 7 | 160 | 
                                    
                                    4.8%
                                 | |
| Missing value | 13 |