| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1024 |
4.2%
|
| 2 | Monthly | 1158 |
4.7%
|
| 3 | Yearly | 1118 |
4.5%
|
| 4 | Less often | 2177 |
8.9%
|
| 5 | Not at all | 19115 |
77.7%
|
| Sysmiss | 516 |