| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 811 |
34.1%
|
| 1 | A few times | 704 |
29.6%
|
| 2 | Often | 428 |
18%
|
| 8 | Refused | 6 |
0.3%
|
| 9 | Don’t know | 429 |
18%
|