| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 677 |
56.4%
|
| 1 | Only once | 128 |
10.7%
|
| 2 | A few times | 203 |
16.9%
|
| 3 | Often | 191 |
15.9%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 1 |
0.1%
|