| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1784 |
7.2%
|
| 2 | Monthly | 2777 |
11.3%
|
| 3 | Yearly | 3291 |
13.4%
|
| 4 | Less often | 3898 |
15.8%
|
| 5 | Not at all | 12900 |
52.3%
|
| Sysmiss | 510 |