| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 3066 |
12.4%
|
| 2 | Monthly | 1857 |
7.5%
|
| 3 | Yearly | 940 |
3.8%
|
| 4 | Less often | 2913 |
11.8%
|
| 5 | Not at all | 15874 |
64.4%
|
| Sysmiss | 510 |