| Value | Category | Cases | |
|---|---|---|---|
| 1 | Unpaved roads | 178 |
5.5%
|
| 2 | Quarries/Stone cutting | 27 |
0.8%
|
| 3 | Construction activities | 87 |
2.7%
|
| 4 | Industrial activities | 48 |
1.5%
|
| 5 | Other, specify | 51 |
1.6%
|
| Sysmiss | 2829 |