| Value | Category | Cases | |
|---|---|---|---|
| 1 | central | 812 |
25.6%
|
| 2 | eastern | 728 |
22.9%
|
| 3 | northern | 894 |
28.1%
|
| 4 | western | 742 |
23.4%
|
| Sysmiss | 66 |