| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 112 |
47.5%
|
| 2 | Monthly | 97 |
41.1%
|
| 3 | Quarterly | 11 |
4.7%
|
| 4 | Yearly | 16 |
6.8%
|
| Sysmiss | 1204 |