| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 9856 |
39.8%
|
| 2 | Monthly | 3605 |
14.6%
|
| 3 | Yearly | 1289 |
5.2%
|
| 4 | Less often | 3453 |
13.9%
|
| 5 | Not at all | 6564 |
26.5%
|
| Sysmiss | 817 |