| Value | Category | Cases | |
|---|---|---|---|
| 1 | Up to 1300m | 630 |
31.4%
|
| 2 | 1300-1700m | 612 |
30.5%
|
| 3 | 1700m and more | 765 |
38.1%
|
| Sysmiss | 3177 |