| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 594 |
49.5%
|
| 1 | Only once | 186 |
15.5%
|
| 2 | A few times | 235 |
19.6%
|
| 3 | Often | 179 |
14.9%
|
| 9 | Don't know | 6 |
0.5%
|
| 98 | Refused | 0 |
0%
|