| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 370 |
1.5%
|
| 2 | Monthly | 1909 |
7.8%
|
| 3 | Yearly | 1120 |
4.6%
|
| 4 | Less often | 1948 |
7.9%
|
| 5 | Not at all | 19245 |
78.3%
|
| Sysmiss | 516 |