| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1889 |
7.7%
|
| 2 | Monthly | 1245 |
5.1%
|
| 3 | Yearly | 776 |
3.1%
|
| 4 | Less often | 2454 |
10%
|
| 5 | Not at all | 18286 |
74.2%
|
| Sysmiss | 510 |