| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1415 |
59%
|
| 1 | Once or twice | 350 |
14.6%
|
| 2 | A few times | 273 |
11.4%
|
| 3 | Often | 361 |
15%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 1 |
0%
|