| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily or almost daily | 5 |
0.5%
|
| 2 | Weekly | 5 |
0.5%
|
| 3 | Monthly | 10 |
1%
|
| 4 | Less than monthly | 75 |
7.9%
|
| 5 | Never | 859 |
90%
|
| Sysmiss | 1669 |