| 序号 | 日期 | 价格(元/斤) | 涨跌幅度 |
| 1 | 20/08/15 | 6.40 | 4.92% |
| 2 | 20/08/15 | 6.10 | -8.27% |
| 3 | 20/08/14 | 6.65 | 4.72% |
| 4 | 20/08/14 | 6.35 | 5.83% |
| 5 | 20/08/14 | 6.00 | -8.4% |
| 6 | 20/08/13 | 6.55 | 4.8% |
| 7 | 20/08/13 | 6.25 | 6.84% |
| 8 | 20/08/13 | 5.85 | -10.69% |
| 9 | 20/08/12 | 6.55 | 4.8% |
| 10 | 20/08/12 | 6.25 | 6.84% |
| 11 | 20/08/12 | 5.85 | -9.3% |
| 12 | 20/08/11 | 6.45 | 4.03% |
| 13 | 20/08/11 | 6.20 | 5.98% |
| 14 | 20/08/11 | 5.85 | -7.87% |
| 15 | 20/08/10 | 6.35 | % |
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