| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 2116 |
88.3%
|
| 1 | Only once | 163 |
6.8%
|
| 2 | A few times | 83 |
3.5%
|
| 3 | Often | 33 |
1.4%
|
| 9 | Don’t know | 2 |
0.1%
|
| 98 | Refused | 0 |
0%
|