| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 926 |
3.8%
|
| 2 | Monthly | 731 |
3%
|
| 3 | Yearly | 907 |
3.7%
|
| 4 | Less often | 2096 |
8.5%
|
| 5 | Not at all | 19932 |
81.1%
|
| Sysmiss | 516 |