月份 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
平均价格(元/kg) |
3.3 |
3.4 |
3.4 |
3.5 |
3.4 |
3.2 |
3.0 |
2.9 |
2.8 |
2.8 |
2.9 |
3.0 |