| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 907 |
75.6%
|
| 1 | Only once | 117 |
9.8%
|
| 2 | A few times | 124 |
10.3%
|
| 3 | Often | 50 |
4.2%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 2 |
0.2%
|