| Value | Category | Cases | |
|---|---|---|---|
| 1 | DIRECT FROM SOURCE | 588 |
23.2%
|
| 2 | COVERED CONTAINER | 1606 |
63.3%
|
| 3 | UNCOVERED CONTAINER | 296 |
11.7%
|
| 8 | UNABLE TO OBSERVE | 46 |
1.8%
|
| Sysmiss | 10264 |