| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 6 |
0.5%
|
| 0 | Never | 691 |
57.6%
|
| 1 | Only once | 213 |
17.8%
|
| 2 | A few times | 157 |
13.1%
|
| 3 | Often | 124 |
10.3%
|
| 9 | Don’t know | 8 |
0.7%
|
| 998 | Refused | 0 |
0%
|