| Value | Category | Cases | |
|---|---|---|---|
| 1 | Unpaved roads | 105 |
3.4%
|
| 2 | quarries and stone cutting | 25 |
0.8%
|
| 3 | Construction | 47 |
1.5%
|
| 4 | Industrial activities | 35 |
1.1%
|
| 5 | Other | 10 |
0.3%
|
| 6 | traffic movement | 33 |
1.1%
|
| Sysmiss | 2867 |