| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily or almost daily | 7 |
0.9%
|
| 2 | Weekly | 19 |
2.3%
|
| 3 | Monthly | 34 |
4.1%
|
| 4 | Less than monthly | 27 |
3.3%
|
| 5 | Never | 733 |
89.4%
|
| Sysmiss | 618 |