| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 716 |
2.9%
|
| 2 | Monthly | 856 |
3.5%
|
| 3 | Yearly | 1157 |
4.7%
|
| 4 | Less often | 2073 |
8.4%
|
| 5 | Not at all | 19848 |
80.5%
|
| Sysmiss | 510 |