| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 343 |
28.6%
|
| 1 | Once or twice | 101 |
8.4%
|
| 2 | A few times | 29 |
2.4%
|
| 3 | Often | 3 |
0.3%
|
| 7 | Not applicable | 714 |
59.5%
|
| 8 | Refused | 7 |
0.6%
|
| 9 | Don't know | 3 |
0.3%
|