| Value | Category | Cases | |
|---|---|---|---|
| 0 | 334 | 
                                    
                                    24%
                                 | |
| 1 | 360 | 
                                    
                                    25.9%
                                 | |
| 2 | 341 | 
                                    
                                    24.5%
                                 | |
| 3 | 217 | 
                                    
                                    15.6%
                                 | |
| 4 | 94 | 
                                    
                                    6.8%
                                 | |
| 5 | 25 | 
                                    
                                    1.8%
                                 | |
| 6 | 13 | 
                                    
                                    0.9%
                                 | |
| 7 | 5 | 
                                    
                                    0.4%
                                 | |
| 8 | 1 | 
                                    
                                    0.1%
                                 | |
| 9 | 2 | 
                                    
                                    0.1%
                                 | |
| Missing value | 35 |