| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 952 |
39.7%
|
| 1 | Once or twice | 93 |
3.9%
|
| 2 | A few times | 58 |
2.4%
|
| 3 | Often | 28 |
1.2%
|
| 7 | Not applicable | 1267 |
52.8%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 2 |
0.1%
|