| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 10831 |
51.1%
|
| 2 | Weekly | 5515 |
26%
|
| 3 | Monthly | 1244 |
5.9%
|
| 4 | Yearly | 150 |
0.7%
|
| 5 | Not at all | 3446 |
16.3%
|
| Sysmiss | 3974 |