| Value | Category | Cases | |
|---|---|---|---|
| 0 | 20 | 
                                                                 
                                    
                                    0.3%
                                 
                                                             | 
                                                        
                    |
| 1 | 993 | 
                                                                 
                                    
                                    14.2%
                                 
                                                             | 
                                                        
                    |
| 2 | 1327 | 
                                                                 
                                    
                                    18.9%
                                 
                                                             | 
                                                        
                    |
| 3 | 1410 | 
                                                                 
                                    
                                    20.1%
                                 
                                                             | 
                                                        
                    |
| 4 | 1054 | 
                                                                 
                                    
                                    15%
                                 
                                                             | 
                                                        
                    |
| 5 | 983 | 
                                                                 
                                    
                                    14%
                                 
                                                             | 
                                                        
                    |
| 6 | 1187 | 
                                                                 
                                    
                                    16.9%
                                 
                                                             | 
                                                        
                    |
| 7 | 15 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    |
| 8 | 11 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    |
| 98 | don't know | 5 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    
| 99 | 5 | 
                                                                 
                                    
                                    0.1%
                                 
                                                             | 
                                                        
                    |
| 101 | .Z | 1222 |