| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Human Activity | 364 |
22.8%
|
| 2 | Natural processes | 298 |
18.6%
|
| 3 | Both human activity and natural processes | 122 |
7.6%
|
| 4 | None of these | 3 |
0.2%
|
| 7 | Not applicable | 797 |
49.8%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know / Haven’t heard enough | 16 |
1%
|