| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 985 |
71.1%
|
| 2 | Monthly | 369 |
26.6%
|
| 3 | Quarterly | 25 |
1.8%
|
| 4 | Yearly | 7 |
0.5%
|
| Sysmiss | 54 |