| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 974 |
81.2%
|
| 1 | Only once | 107 |
8.9%
|
| 2 | A few times | 79 |
6.6%
|
| 3 | Often | 29 |
2.4%
|
| 8 | Refused to answer | 0 |
0%
|
| 9 | Don’t know | 11 |
0.9%
|