| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always know | 19775 | 
                                
                                56.2%
                             | 
| 2 | Sometimes know | 12518 | 
                                
                                35.6%
                             | 
| 3 | Never know | 2896 | 
                                
                                8.2%
                             | 
| 5 | Missing | 0 | 
                                
                                0%
                             | 
| 8 | Dont know | 0 | 
                                
                                0%
                             | 
| 9 | Not Applicable | 0 | 
                                
                                0%
                             |