| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 424 |
17.7%
|
| 1 | Once or twice | 196 |
8.2%
|
| 2 | A few times | 136 |
5.7%
|
| 3 | Often | 154 |
6.4%
|
| 7 | Not applicable | 1490 |
62.1%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|