| Value | Category | Cases | |
|---|---|---|---|
| 1 | Nylon bags | 1970 |
70.8%
|
| 2 | Special bags | 213 |
7.7%
|
| 3 | Carton boxes | 100 |
3.6%
|
| 4 | Metal boxes | 132 |
4.7%
|
| 5 | Normal plastic boxes | 187 |
6.7%
|
| 6 | Special plastic boxes | 19 |
0.7%
|
| 7 | Others, specify | 92 |
3.3%
|
| Sysmiss | 71 |