| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 8311 |
38.3%
|
| 2 | Weekly | 7068 |
32.6%
|
| 3 | Monthly | 1765 |
8.1%
|
| 4 | Yearly | 223 |
1%
|
| 5 | Not at all | 4310 |
19.9%
|
| Sysmiss | 3431 |