| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1168 |
4.7%
|
| 2 | Monthly | 1663 |
6.8%
|
| 3 | Yearly | 1415 |
5.8%
|
| 4 | Less often | 3236 |
13.2%
|
| 5 | Not at all | 17110 |
69.6%
|
| Sysmiss | 516 |