| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1389 |
5.6%
|
| 2 | Monthly | 2230 |
9.1%
|
| 3 | Yearly | 1302 |
5.3%
|
| 4 | Less often | 2941 |
12%
|
| 5 | Not at all | 16730 |
68%
|
| Sysmiss | 516 |