| Value | Category | Cases | |
|---|---|---|---|
| 1 | Arsenic | 147 |
47.1%
|
| 1 2 | 24 |
7.7%
|
|
| 1 2 3 | 18 |
5.8%
|
|
| 1 2 3 4 | 7 |
2.2%
|
|
| 1 2 4 | 2 |
0.6%
|
|
| 1 3 | 48 |
15.4%
|
|
| 1 3 4 | 6 |
1.9%
|
|
| 1 3 97 | 1 |
0.3%
|
|
| 1 4 | 5 |
1.6%
|
|
| 2 | Iron | 9 |
2.9%
|
| 2 3 | 4 |
1.3%
|
|
| 3 | Salinity | 5 |
1.6%
|
| 3 4 | 2 |
0.6%
|
|
| 4 | Bacteria | 0 |
0%
|
| 97 | Other | 1 |
0.3%
|
| 98 | Don't Know | 33 |
10.6%
|