| Value | Category | Cases | |
|---|---|---|---|
| 1 | Tar | 1155 |
27.2%
|
| 2 | Cement | 2413 |
56.9%
|
| 3 | Gravel | 56 |
1.3%
|
| 4 | Mud/dirt | 609 |
14.3%
|
| 5 | Other | 10 |
0.2%
|
| 66 | Not on roster | 0 |
0%
|
| 77 | Not applicable/not available | 1 |
0%
|
| 87 | No preference | 0 |
0%
|
| 88 | Don?t know | 0 |
0%
|
| 90 | Since birth | 0 |
0%
|
| 99 | No response/Refuse to answer | 0 |
0%
|
| Sysmiss | 1 |