| 日期 | 单位：% |
| 2014-04-28 | 购买后可见 » |
| 2014-04-04 | 购买后可见 » |
| 2014-03-03 | 购买后可见 » |
| 2013-06-11 | 购买后可见 » |
| 2013-05-16 | 购买后可见 » |
| 2013-04-03 | 购买后可见 » |
| 2012-09-14 | 购买后可见 » |
| 2011-09-15 | 购买后可见 » |
| 2011-05-03 | 购买后可见 » |
| 2011-02-28 | 购买后可见 » |
| 2010-06-01 | 购买后可见 » |
| 2010-04-30 | 7.25 |
| 2010-03-29 | 7.50 |
| 2010-02-24 | 7.75 |
| 2009-12-28 | 8.00 |
| 2009-11-25 | 8.25 |
| 2009-10-30 | 8.75 |
| 2009-09-30 | 9.25 |
| 2009-09-15 | 9.75 |
| 2009-08-10 | 10.00 |
| 2009-07-13 | 10.25 |
| 2009-06-05 | 10.75 |
| 2009-05-14 | 11.25 |
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