| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily or almost daily | 4 |
2%
|
| 2 | Weekly | 2 |
1%
|
| 3 | Monthly | 4 |
2%
|
| 4 | Less than monthly | 8 |
4.1%
|
| 5 | Never | 179 |
90.9%
|
| Sysmiss | 2521 |