Value | Category | Cases | |
---|---|---|---|
1 | Sump(modern pit) | 117 |
2.9%
|
2 | Open hole | 110 |
2.8%
|
3 | Gutter | 80 |
2%
|
4 | In nature | 3631 |
91.5%
|
5 | Other | 30 |
0.8%
|