| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 278 |
20.6%
|
| 1 | Only sometimes | 433 |
32.1%
|
| 2 | Often | 166 |
12.3%
|
| 3 | Always | 95 |
7%
|
| 9 | Don't know | 378 |
28%
|
| 998 | Refused | 0 |
0%
|