| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1 |
1.1%
|
| 2 | Monthly | 21 |
22.8%
|
| 3 | Quarterly | 27 |
29.3%
|
| 4 | Annually | 43 |
46.7%
|
| Sysmiss | 12689 |