| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1666 |
6.7%
|
| 2 | Monthly | 2274 |
9.2%
|
| 3 | Yearly | 3454 |
13.9%
|
| 4 | Less often | 4641 |
18.7%
|
| 5 | Not at all | 12732 |
51.4%
|
| Sysmiss | 817 |