| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | Never | 909 |
67.3%
|
| 1 | Sometimes | 97 |
7.2%
|
| 2 | Often | 22 |
1.6%
|
| 3 | Always | 7 |
0.5%
|
| 7 | Not applicable | 23 |
1.7%
|
| 9 | Don't know | 291 |
21.6%
|
| 998 | Refused | 0 |
0%
|