| 日期 | 单位：万吨 |
| 2011-09-16 | 购买后可见 » |
| 2011-08-22 | 购买后可见 » |
| 2011-08-05 | 购买后可见 » |
| 2011-07-06 | 购买后可见 » |
| 2011-05-31 | 购买后可见 » |
| 2011-02-28 | 购买后可见 » |
| 2010-12-22 | 购买后可见 » |
| 2010-11-22 | 购买后可见 » |
| 2010-10-22 | 21.68 |
| 2010-09-09 | 24.32 |
| 2010-08-12 | 15.00 |
| 2010-07-06 | 10.00 |
| 2010-04-28 | 10.05 |
| 2010-03-05 | 25.80 |
| 2010-01-21 | 35.65 |
| 2009-12-21 | 28.82 |
| 2009-12-10 | 20.74 |
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