| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 2043 |
85.1%
|
| 1 | Only once | 131 |
5.5%
|
| 2 | A few times | 152 |
6.3%
|
| 3 | Often | 65 |
2.7%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 9 |
0.4%
|