| Value | Category | Cases | |
|---|---|---|---|
| 1 | Unpaved roads | 169 |
9.9%
|
| 2 | Queries and stone cutting | 22 |
1.3%
|
| 3 | Construction | 124 |
7.3%
|
| 4 | Industrial activities | 25 |
1.5%
|
| 5 | Other (specify) | 22 |
1.3%
|
| Sysmiss | 1347 |