| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 2244 |
9.1%
|
| 2 | Monthly | 7355 |
29.8%
|
| 3 | Yearly | 2953 |
12%
|
| 4 | Less often | 4801 |
19.5%
|
| 5 | Not at all | 7297 |
29.6%
|
| Sysmiss | 510 |