| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes, weekly | 400 |
7.4%
|
| 2 | yes monthly | 1533 |
28.2%
|
| 3 | yes quarterly | 1051 |
19.3%
|
| 4 | yes annually | 847 |
15.6%
|
| 5 | no | 1464 |
26.9%
|
| 6 | other | 143 |
2.6%
|
| Sysmiss | 6087 |