| Value | Category | Cases | |
|---|---|---|---|
| 1 | BLANK WATER SAMPLE AVAILABLE | 996 |
95.5%
|
| 2 | BLANK WATER SAMPLE NOT AVAILABLE | 30 |
2.9%
|
| 9 | NO RESPONSE | 17 |
1.6%
|
| Sysmiss | 20337 |