| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 907 |
75.7%
|
| 1 | Only once | 80 |
6.7%
|
| 2 | A few times | 87 |
7.3%
|
| 3 | Often | 84 |
7%
|
| 9 | Don't know | 40 |
3.3%
|
| 998 | Refused | 0 |
0%
|