| Value | Category | Cases | |
|---|---|---|---|
| 1 | DIRECT FROM SOURCE | 1829 |
13%
|
| 2 | COVERED CONTAINER | 633 |
4.5%
|
| 3 | UNCOVERED CONTAINER | 212 |
1.5%
|
| 8 | UNABLE TO OBSERVE | 25 |
0.2%
|
| Sysmiss | 11421 |
80.9%
|