| Value | Category | Cases | |
|---|---|---|---|
| 1 | Always know | 20850 |
59.3%
|
| 2 | Sometimes know | 6104 |
17.3%
|
| 3 | Never know | 1168 |
3.3%
|
| 5 | Missing | 2 |
0%
|
| 8 | Dont know | 1 |
0%
|
| 9 | Not Applicable | 7064 |
20.1%
|