| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 413 |
49.4%
|
| 2 | Monthly | 390 |
46.7%
|
| 3 | Quarterly | 26 |
3.1%
|
| 4 | Yearly | 7 |
0.8%
|
| Sysmiss | 604 |