| Value | Category | Cases | |
|---|---|---|---|
| 1 | DIRECT FROM SOURCE | 364 |
13.3%
|
| 2 | COVERED CONTAINER | 1798 |
65.7%
|
| 3 | UNCOVERED CONTAINER | 562 |
20.5%
|
| 8 | UNABLE TO OBSERVE | 12 |
0.4%
|
| Sysmiss | 11764 |