| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 794 |
66.2%
|
| 1 | Only once | 211 |
17.6%
|
| 2 | A few times | 137 |
11.4%
|
| 3 | Often | 56 |
4.7%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 2 |
0.2%
|