| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 99 |
8.3%
|
| 1 | Once or twice | 54 |
4.5%
|
| 2 | A few times | 104 |
8.7%
|
| 3 | Often | 301 |
25.1%
|
| 7 | Not applicable | 636 |
53%
|
| 8 | Refuse to answer | 0 |
0%
|
| 9 | Don't know | 6 |
0.5%
|