| Value | Category | Cases | |
|---|---|---|---|
| 0 | 455 | 
                                    
                                    2.1%
                                 | |
| 1 | 195 | 
                                    
                                    0.9%
                                 | |
| 2 | 9 | 
                                    
                                    0%
                                 | |
| 3 | 3 | 
                                    
                                    0%
                                 | |
| 5 | 1 | 
                                    
                                    0%
                                 | |
| 8 | 1 | 
                                    
                                    0%
                                 | |
| 88 | Not applicable | 141 | 
                                    
                                    0.7%
                                 | 
| 98 | Do not know | 8 | 
                                    
                                    0%
                                 | 
| 99 | Unspecified | 20377 | 
                                    
                                    96.2%
                                 |