| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 13 |
0%
|
| 0 | Never | 32905 |
61%
|
| 1 | Only once | 4239 |
7.9%
|
| 2 | A few times | 8218 |
15.2%
|
| 3 | Often | 8304 |
15.4%
|
| 9 | Don’t know | 256 |
0.5%
|
| 98 | Refused | 0 |
0%
|