| Value | Category | Cases | |
|---|---|---|---|
| 1 | non-metal : earthen | 14139 |
13.2%
|
| 2 | plastic | 36168 |
33.9%
|
| 3 | other non-metal | 1893 |
1.8%
|
| 4 | metal : iron | 1415 |
1.3%
|
| 5 | copper | 964 |
0.9%
|
| 6 | stainless steel | 38515 |
36%
|
| 7 | brass | 731 |
0.7%
|
| 8 | other metal | 4969 |
4.7%
|
| 9 | no storage | 8044 |
7.5%
|