| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1613 |
67.8%
|
| 1 | Only once | 326 |
13.7%
|
| 2 | A few times | 258 |
10.8%
|
| 3 | Often | 123 |
5.2%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 58 |
2.4%
|