| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1745 |
7%
|
| 2 | Monthly | 993 |
4%
|
| 3 | Yearly | 901 |
3.6%
|
| 4 | Less often | 2333 |
9.4%
|
| 5 | Not at all | 18795 |
75.9%
|
| Sysmiss | 817 |