| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always know | 9274 | 
                                
                                66.2%
                             | 
| 2 | Sometimes know | 2269 | 
                                
                                16.2%
                             | 
| 3 | Never know | 247 | 
                                
                                1.8%
                             | 
| 5 | Missing | 92 | 
                                
                                0.7%
                             | 
| 8 | Dont know | 0 | 
                                
                                0%
                             | 
| 9 | Not Applicable | 2129 | 
                                
                                15.2%
                             |