| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 456 |
38%
|
| 1 | Once or twice | 27 |
2.3%
|
| 2 | A few times | 13 |
1.1%
|
| 3 | Often | 3 |
0.3%
|
| 7 | Not applicable | 700 |
58.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 1 |
0.1%
|