| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 2185 |
8.9%
|
| 2 | Monthly | 2564 |
10.4%
|
| 3 | Yearly | 1398 |
5.7%
|
| 4 | Less often | 3414 |
13.9%
|
| 5 | Not at all | 15031 |
61.1%
|
| Sysmiss | 516 |