| Value | Category | Cases | |
|---|---|---|---|
| 1 | Nylon bags | 14 |
1%
|
| 2 | Special bags | 25 |
1.8%
|
| 3 | Carton boxes | 18 |
1.3%
|
| 4 | Metal boxes | 11 |
0.8%
|
| 5 | Plastic boxes | 41 |
3%
|
| 6 | Others, specify | 6 |
0.4%
|
| Sysmiss | 1270 |