| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 916 |
76.3%
|
| 1 | Only sometimes | 179 |
14.9%
|
| 2 | Often | 73 |
6.1%
|
| 3 | Always | 8 |
0.7%
|
| 9 | Don't know | 24 |
2%
|
| 998 | Refused | 0 |
0%
|