| Value | Category | Cases | |
|---|---|---|---|
| 0 | 63 | 
                                    
                                    0.3%
                                 | |
| 1 | 42 | 
                                    
                                    0.2%
                                 | |
| 2 | 11 | 
                                    
                                    0.1%
                                 | |
| 3 | 8 | 
                                    
                                    0%
                                 | |
| 4 | 4 | 
                                    
                                    0%
                                 | |
| 5 | 1 | 
                                    
                                    0%
                                 | |
| 98 | Do not know | 10 | 
                                    
                                    0%
                                 | 
| 99 | Unspecified | 21051 | 
                                    
                                    99.3%
                                 |