| Value | Category | Cases | |
|---|---|---|---|
| -8 | 8 |
0%
|
|
| 1 | Mud | 15615 |
28.6%
|
| 2 | Concrete | 1317 |
2.4%
|
| 3 | Wooden Poles | 12611 |
23.1%
|
| 4 | Metal poles | 168 |
0.3%
|
| 5 | Other | 590 |
1.1%
|
| 6 | None | 24323 |
44.5%
|
| Sysmiss | 6292 |