| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 2052 |
8.3%
|
| 2 | Monthly | 2490 |
10.1%
|
| 3 | Yearly | 1397 |
5.7%
|
| 4 | Less often | 3580 |
14.6%
|
| 5 | Not at all | 15073 |
61.3%
|
| Sysmiss | 516 |