| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1052 |
83.8%
|
| 1 | Only once | 64 |
5.1%
|
| 2 | A few times | 86 |
6.8%
|
| 3 | Often | 48 |
3.8%
|
| 9 | Don't know | 6 |
0.5%
|
| 998 | Refused | 0 |
0%
|