| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1575 | 
                                    
                                    24%
                                 | |
| 1 | 1118 | 
                                    
                                    17%
                                 | |
| 2 | 349 | 
                                    
                                    5.3%
                                 | |
| 3 | 87 | 
                                    
                                    1.3%
                                 | |
| 4 | 24 | 
                                    
                                    0.4%
                                 | |
| 5 | 7 | 
                                    
                                    0.1%
                                 | |
| 6 | 2 | 
                                    
                                    0%
                                 | |
| Missing value | 3399 | 
                                    
                                    51.8%
                                 |