| 序号 | 日期 | 价格(元/斤) | 涨跌幅度 |
| 1 | 20/07/21 | 6.85 | 2.24% |
| 2 | 20/07/21 | 6.70 | -7.59% |
| 3 | 20/07/20 | 7.25 | 3.57% |
| 4 | 20/07/20 | 7.00 | 2.94% |
| 5 | 20/07/20 | 6.80 | -4.9% |
| 6 | 20/07/19 | 7.15 | 3.62% |
| 7 | 20/07/19 | 6.90 | 2.99% |
| 8 | 20/07/19 | 6.70 | -6.29% |
| 9 | 20/07/18 | 7.15 | 3.62% |
| 10 | 20/07/18 | 6.90 | 4.55% |
| 11 | 20/07/18 | 6.60 | -7.69% |
| 12 | 20/07/17 | 7.15 | 3.62% |
| 13 | 20/07/17 | 6.90 | 4.55% |
| 14 | 20/07/17 | 6.60 | -2.22% |
| 15 | 20/07/16 | 6.75 | % |
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