| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Never | 1367 |
57%
|
| 2 | Once or twice | 369 |
15.4%
|
| 3 | A few times | 309 |
12.9%
|
| 4 | Often | 188 |
7.8%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 167 |
7%
|