| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 4 |
0.3%
|
| 0 | Never | 850 |
70.8%
|
| 1 | Only once | 64 |
5.3%
|
| 2 | A few times | 138 |
11.5%
|
| 3 | Often | 142 |
11.8%
|
| 9 | Don't know | 2 |
0.2%
|
| 998 | Refused | 0 |
0%
|