| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1425 |
59.4%
|
| 1 | Only once | 211 |
8.8%
|
| 2 | A few times | 442 |
18.4%
|
| 3 | Often | 317 |
13.2%
|
| 9 | Don't know | 5 |
0.2%
|
| 98 | Refused | 0 |
0%
|