| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1017 |
84.9%
|
| 1 | Only once | 68 |
5.7%
|
| 2 | A few times | 67 |
5.6%
|
| 3 | Often | 42 |
3.5%
|
| 8 | Refused | 2 |
0.2%
|
| 9 | Don’t know | 2 |
0.2%
|