| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always know | 22407 | 
                                
                                63.7%
                             | 
| 2 | Sometimes know | 4812 | 
                                
                                13.7%
                             | 
| 3 | Never know | 928 | 
                                
                                2.6%
                             | 
| 5 | Missing | 3 | 
                                
                                0%
                             | 
| 8 | Dont know | 1 | 
                                
                                0%
                             | 
| 9 | Not Applicable | 7038 | 
                                
                                20%
                             |