| Value | Category | Cases | |
|---|---|---|---|
| 1 | TAR / TARMAC (PAVED) | 6 |
5.5%
|
| 2 | gravel | 17 |
15.6%
|
| 3 | dust | 86 |
78.9%
|
| 96 | OTHER (SPECIFY) | 0 |
0%
|