| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 502 |
2%
|
| 2 | Monthly | 1419 |
5.8%
|
| 3 | Yearly | 5558 |
22.6%
|
| 4 | Less often | 10994 |
44.7%
|
| 5 | Not at all | 6119 |
24.9%
|
| Sysmiss | 516 |