| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 12739 |
51.8%
|
| 2 | Monthly | 3024 |
12.3%
|
| 3 | Yearly | 1025 |
4.2%
|
| 4 | Less often | 2521 |
10.3%
|
| 5 | Not at all | 5283 |
21.5%
|
| Sysmiss | 516 |