| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Metal | 287 | 358 |
56.8%
|
| 2 | Plastic | 66 | 78 |
12.4%
|
| 3 | Others | 4 | 5 |
0.7%
|
| Sysmiss | 153 | 189 |