| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1318 |
55.4%
|
| 1 | Once or twice | 93 |
3.9%
|
| 2 | A few times | 37 |
1.6%
|
| 3 | Often | 16 |
0.7%
|
| 7 | Not applicable | 911 |
38.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 3 |
0.1%
|