| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1648 |
6.7%
|
| 2 | Monthly | 2652 |
10.8%
|
| 3 | Yearly | 3530 |
14.4%
|
| 4 | Less often | 4189 |
17%
|
| 5 | Not at all | 12573 |
51.1%
|
| Sysmiss | 516 |