| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1096 |
4.5%
|
| 2 | Monthly | 1581 |
6.4%
|
| 3 | Yearly | 1647 |
6.7%
|
| 4 | Less often | 3914 |
15.9%
|
| 5 | Not at all | 16354 |
66.5%
|
| Sysmiss | 516 |