| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 636 |
53%
|
| 1 | Only once | 119 |
9.9%
|
| 2 | A few times | 239 |
19.9%
|
| 3 | Often | 203 |
16.9%
|
| 9 | Don't know | 3 |
0.3%
|
| 998 | Refused | 0 |
0%
|