| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 841 |
76.2%
|
| 1 | Only once | 122 |
11.1%
|
| 2 | A few times | 98 |
8.9%
|
| 3 | Often | 38 |
3.4%
|
| 9 | Don't know | 5 |
0.5%
|
| 998 | Refused | 0 |
0%
|