| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Human Activity | 417 |
34.8%
|
| 2 | Natural processes | 126 |
10.5%
|
| 3 | Both human activity and natural processes | 99 |
8.3%
|
| 4 | None of these | 2 |
0.2%
|
| 7 | Not applicable | 531 |
44.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know / Haven’t heard enough | 25 |
2.1%
|