| 序号 | 日期 | 价格(元/斤) | 涨跌幅度 |
| 1 | 20/07/16 | 6.50 | 3.17% |
| 2 | 20/07/16 | 6.30 | 0.8% |
| 3 | 20/07/15 | 6.25 | 3.82% |
| 4 | 20/07/15 | 6.02 | 4.7% |
| 5 | 20/07/15 | 5.75 | -6.5% |
| 6 | 20/07/14 | 6.15 | 3.36% |
| 7 | 20/07/14 | 5.95 | 4.39% |
| 8 | 20/07/14 | 5.70 | -11.63% |
| 9 | 20/07/13 | 6.45 | 3.2% |
| 10 | 20/07/13 | 6.25 | 5.04% |
| 11 | 20/07/13 | 5.95 | -3.25% |
| 12 | 20/07/12 | 6.15 | 4.24% |
| 13 | 20/07/12 | 5.90 | 3.51% |
| 14 | 20/07/12 | 5.70 | 0.88% |
| 15 | 20/07/11 | 5.65 | % |
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