| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1357 |
56.5%
|
| 1 | Only once | 184 |
7.7%
|
| 2 | A few times | 318 |
13.3%
|
| 3 | Often | 503 |
21%
|
| 8 | Refused | 1 |
0%
|
| 9 | Don’t know | 37 |
1.5%
|