| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 23 |
14.7%
|
| 1 | Once/Twice | 49 |
31.4%
|
| 2 | Monthly | 40 |
25.6%
|
| 3 | Weekly | 33 |
21.2%
|
| 4 | Daily/almost daily | 11 |
7.1%
|
| Sysmiss | 3 |