| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 2369 |
9.6%
|
| 2 | Monthly | 2595 |
10.5%
|
| 3 | Yearly | 1320 |
5.4%
|
| 4 | Less often | 3284 |
13.3%
|
| 5 | Not at all | 15082 |
61.2%
|
| Sysmiss | 510 |