| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 975 |
81.4%
|
| 1 | Only once | 66 |
5.5%
|
| 2 | A few times | 67 |
5.6%
|
| 3 | Often | 43 |
3.6%
|
| 9 | Don't know | 47 |
3.9%
|
| 998 | Refused | 0 |
0%
|