| Value | Category | Cases | |
|---|---|---|---|
| 1 | 44 | 
                                                                 
                                    
                                    5.8%
                                 
                                                             | 
                                                        
                    |
| 2 | 159 | 
                                                                 
                                    
                                    20.9%
                                 
                                                             | 
                                                        
                    |
| 3 | 291 | 
                                                                 
                                    
                                    38.2%
                                 
                                                             | 
                                                        
                    |
| 4 | 232 | 
                                                                 
                                    
                                    30.4%
                                 
                                                             | 
                                                        
                    |
| 5 | 36 | 
                                                                 
                                    
                                    4.7%
                                 
                                                             | 
                                                        
                    |
| Missing value | 8 |