| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 892 |
76.8%
|
| 1 | Only once | 72 |
6.2%
|
| 2 | A few times | 139 |
12%
|
| 3 | Often | 56 |
4.8%
|
| 9 | Don't know | 2 |
0.2%
|
| 998 | Refused | 0 |
0%
|