| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 642 |
26.8%
|
| 1 | Once or twice | 291 |
12.1%
|
| 2 | A few times | 168 |
7%
|
| 3 | Often | 152 |
6.3%
|
| 7 | Not applicable | 1144 |
47.7%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 3 |
0.1%
|