| Value | Category | Cases | |
|---|---|---|---|
| Covered container | 682 |
14.6%
|
|
| Direct from source | 399 |
8.5%
|
|
| Unable to observe | 219 |
4.7%
|
|
| Uncovered container | 351 |
7.5%
|
|
| 3035 |
64.8%
|