| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Nylon bags | 36 | 478 |
1.1%
|
| 2 | Special bags | 49 | 791 |
1.9%
|
| 3 | Carton boxes | 34 | 533 |
1.3%
|
| 4 | Metal boxes | 70 | 1254 |
2.9%
|
| 5 | Plastic boxes | 110 | 1477 |
3.5%
|
| 6 | Others, specify | 41 | 585 |
1.4%
|
| Sysmiss | 2419 | 37492 |