| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 307 |
25.6%
|
| 1 | Once or twice | 109 |
9.1%
|
| 2 | A few times | 60 |
5%
|
| 3 | Often | 4 |
0.3%
|
| 7 | Not applicable | 709 |
59.1%
|
| 8 | Refused | 8 |
0.7%
|
| 9 | Don't know | 3 |
0.3%
|