| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 4 |
0.2%
|
| 0 | Never | 1128 |
47%
|
| 1 | Only sometimes | 572 |
23.8%
|
| 2 | Often | 247 |
10.3%
|
| 3 | Always | 163 |
6.8%
|
| 9 | Don't know | 286 |
11.9%
|
| 998 | Refused | 0 |
0%
|