| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1472 |
6%
|
| 2 | Monthly | 2379 |
9.7%
|
| 3 | Yearly | 1266 |
5.1%
|
| 4 | Less often | 3039 |
12.3%
|
| 5 | Not at all | 16494 |
66.9%
|
| Sysmiss | 510 |