| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1836 |
39.6%
|
|
| 1 | rural: 1330 meters | 1080 |
23.3%
|
| 2 | rural: 1301-1700 | 1052 |
22.7%
|
| 3 | rural: 1701 and above | 666 |
14.4%
|
| 11 | .Z | 0 |