| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 9218 |
37.2%
|
| 2 | Monthly | 3358 |
13.6%
|
| 3 | Yearly | 1396 |
5.6%
|
| 4 | Less often | 3032 |
12.2%
|
| 5 | Not at all | 7763 |
31.3%
|
| Sysmiss | 817 |