| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 799 |
3.2%
|
| 2 | Monthly | 648 |
2.6%
|
| 3 | Yearly | 760 |
3.1%
|
| 4 | Less often | 2241 |
9%
|
| 5 | Not at all | 20319 |
82%
|
| Sysmiss | 817 |