| Value | Category | Cases | |
|---|---|---|---|
| 0 | 802 | 
                                    
                                    12.2%
                                 | |
| 1 | 1692 | 
                                    
                                    25.8%
                                 | |
| 2 | 425 | 
                                    
                                    6.5%
                                 | |
| 3 | 157 | 
                                    
                                    2.4%
                                 | |
| 4 | 67 | 
                                    
                                    1%
                                 | |
| 5 | 31 | 
                                    
                                    0.5%
                                 | |
| 6 | 7 | 
                                    
                                    0.1%
                                 | |
| 7 | 4 | 
                                    
                                    0.1%
                                 | |
| 8 | 6 | 
                                    
                                    0.1%
                                 | |
| 9 | 3 | 
                                    
                                    0%
                                 | |
| 10 | 1 | 
                                    
                                    0%
                                 | |
| 12 | 1 | 
                                    
                                    0%
                                 | |
| 15 | 2 | 
                                    
                                    0%
                                 | |
| 21 | 1 | 
                                    
                                    0%
                                 | |
| Missing value | 3362 | 
                                    
                                    51.2%
                                 |