| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 721 |
60.1%
|
| 1 | Only once | 93 |
7.8%
|
| 2 | A few times | 229 |
19.1%
|
| 3 | Often | 155 |
12.9%
|
| 9 | Don’t know | 2 |
0.2%
|
| 98 | Refused | 0 |
0%
|