| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 423 |
1.7%
|
| 2 | Monthly | 2009 |
8%
|
| 3 | Yearly | 1052 |
4.2%
|
| 4 | Not all | 21561 |
86.1%
|
| Sysmiss | 69 |