| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 10766 |
43.7%
|
| 2 | Monthly | 4238 |
17.2%
|
| 3 | Yearly | 1506 |
6.1%
|
| 4 | Less often | 3409 |
13.8%
|
| 5 | Not at all | 4731 |
19.2%
|
| Sysmiss | 510 |