| Value | Category | Cases | |
|---|---|---|---|
| 1 | DIRECT FROM SOURCE | 366 |
13.3%
|
| 2 | COVERED CONTAINER | 193 |
7%
|
| 3 | UNCOVERED CONTAINER | 16 |
0.6%
|
| 8 | UNABLE TO OBSERVE | 38 |
1.4%
|
| Sysmiss | 2138 |
77.7%
|