| Value | Category | Cases | |
|---|---|---|---|
| 1 | Flush | 155 |
4%
|
| 2 | Water seal | 2094 |
53.4%
|
| 3 | Pit | 975 |
24.8%
|
| 4 | Bucket | 6 |
0.2%
|
| 5 | Other | 20 |
0.5%
|
| 6 | None | 674 |
17.2%
|