| Value | Category | Cases | |
|---|---|---|---|
| 1 | DIRECT FROM SOURCE | 1032 |
7.8%
|
| 2 | COVERED CONTAINER | 1887 |
14.3%
|
| 3 | UNCOVERED CONTAINER | 249 |
1.9%
|
| 8 | UNABLE TO OBSERVE | 51 |
0.4%
|
| Sysmiss | 9983 |
75.6%
|