| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 761 |
3.1%
|
| 2 | Monthly | 691 |
2.8%
|
| 3 | Yearly | 994 |
4%
|
| 4 | Less often | 2473 |
10%
|
| 5 | Not at all | 19848 |
80.1%
|
| Sysmiss | 817 |