| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1171 |
49%
|
| 1 | Only once | 354 |
14.8%
|
| 2 | A few times | 471 |
19.7%
|
| 3 | Often | 221 |
9.2%
|
| 8 | Refused | 56 |
2.3%
|
| 9 | Don’t know | 119 |
5%
|