| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 6667 |
27.1%
|
| 2 | Monthly | 3554 |
14.5%
|
| 3 | Yearly | 1488 |
6.1%
|
| 4 | Less often | 3669 |
14.9%
|
| 5 | Not at all | 9214 |
37.5%
|
| Sysmiss | 516 |