| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 25 |
0.1%
|
| 0 | Never | 17507 |
72%
|
| 1 | Only once | 1994 |
8.2%
|
| 2 | A few times | 2819 |
11.6%
|
| 3 | Often | 1371 |
5.6%
|
| 9 | Don't know | 585 |
2.4%
|
| 98 | Refused | 0 |
0%
|