| Value | Category | Cases | |
|---|---|---|---|
| -7 | Not applicable | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 0 | 529 | 
                                                                 
                                    
                                    67.5%
                                 
                                                             | 
                                                        
                    |
| 1 | 117 | 
                                                                 
                                    
                                    14.9%
                                 
                                                             | 
                                                        
                    |
| 2 | 58 | 
                                                                 
                                    
                                    7.4%
                                 
                                                             | 
                                                        
                    |
| 3 | 38 | 
                                                                 
                                    
                                    4.8%
                                 
                                                             | 
                                                        
                    |
| 4 | 13 | 
                                                                 
                                    
                                    1.7%
                                 
                                                             | 
                                                        
                    |
| 5 | 10 | 
                                                                 
                                    
                                    1.3%
                                 
                                                             | 
                                                        
                    |
| 6 | 5 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    |
| 7 | 4 | 
                                                                 
                                    
                                    0.5%
                                 
                                                             | 
                                                        
                    |
| 8 | 1 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 9 | 2 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 10 | 2 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 11 | 1 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 14 | 1 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 20 | 1 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 888 | Don't know | 2 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             |