| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1017 |
84.8%
|
| 1 | Only once | 43 |
3.6%
|
| 2 | A few times | 77 |
6.4%
|
| 3 | Often | 48 |
4%
|
| 9 | Don't know | 15 |
1.3%
|
| 998 | Refused | 0 |
0%
|