| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 4155 |
16.9%
|
| 2 | Monthly | 711 |
2.9%
|
| 3 | Yearly | 736 |
3%
|
| 4 | Less often | 1564 |
6.4%
|
| 5 | Not at all | 17426 |
70.9%
|
| Sysmiss | 516 |