| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 483 |
40.3%
|
| 1 | Once or twice | 186 |
15.5%
|
| 2 | A few times | 271 |
22.6%
|
| 3 | Often | 257 |
21.4%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 2 |
0.2%
|