| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 1829 |
17.1%
|
| 2 | Weekly | 3814 |
35.7%
|
| 3 | Monthly | 4569 |
42.8%
|
| 4 | Never | 460 |
4.3%
|
| Sysmiss | 36397 |