| Value | Category | Cases | |
|---|---|---|---|
| 1 | DIRECT FROM SOURCE | 588 |
4.6%
|
| 2 | COVERED CONTAINER | 1606 |
12.5%
|
| 3 | UNCOVERED CONTAINER | 296 |
2.3%
|
| 8 | UNABLE TO OBSERVE | 46 |
0.4%
|
| Sysmiss | 10264 |
80.2%
|