| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 638 |
53.2%
|
| 1 | Only once | 108 |
9%
|
| 2 | A few times | 273 |
22.8%
|
| 3 | Often | 181 |
15.1%
|
| 9 | Don't know | 0 |
0%
|
| 998 | Refused | 0 |
0%
|