| 序号 | 时间 (月) |
数据 (美元/吨) |
|---|---|---|
| 1 | 2019-09 | |
| 2 | 2019-07 | |
| 3 | 2018-12 | |
| 4 | 2018-10 | |
| 5 | 2018-09 | |
| 6 | 2018-03 | |
| 7 | 2018-01 | |
| 8 | 2017-07 | |
| 9 | 2017-04 | |
| 10 | 2017-02 | |
| 11 | 2017-01 | |
| 12 | 2016-11 | 1072.87 |
| 13 | 2016-10 | 5938.27 |
| 14 | 2016-08 | 5538.81 |
| 15 | 2016-06 | 4450.00 |
| 16 | 2016-05 | 4827.88 |
| 17 | 2016-03 | 2480.00 |
| 18 | 2016-01 | 3937.44 |
| 19 | 2015-11 | 4235.40 |
| 20 | 2015-09 | 4803.03 |
| 21 | 2015-07 | 4355.00 |
| 22 | 2015-05 | 5638.30 |
| 23 | 2015-04 | 4257.14 |
