| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 734 |
3%
|
| 2 | Monthly | 917 |
3.7%
|
| 3 | Yearly | 872 |
3.5%
|
| 4 | Less often | 2001 |
8.1%
|
| 5 | Not at all | 20126 |
81.6%
|
| Sysmiss | 510 |