| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 10612 |
42.8%
|
| 2 | Monthly | 4056 |
16.4%
|
| 3 | Yearly | 1371 |
5.5%
|
| 4 | Less often | 3779 |
15.3%
|
| 5 | Not at all | 4949 |
20%
|
| Sysmiss | 817 |