| 日期 | 单位：% |
| 2020-04-14 | 购买后可见 » |
| 2020-03-27 | 购买后可见 » |
| 2019-04-13 | 购买后可见 » |
| 2019-01-05 | 购买后可见 » |
| 2017-10-14 | 购买后可见 » |
| 2017-06-24 | 购买后可见 » |
| 2017-01-07 | 购买后可见 » |
| 2016-10-01 | 购买后可见 » |
| 2016-07-09 | 21.00 |
| 2016-04-02 | 21.25 |
| 2015-02-07 | 21.50 |
| 2014-08-09 | 22.00 |
| 2014-06-14 | 22.50 |
| 2012-08-11 | 23.00 |
| 2010-12-18 | 24.00 |
| 2009-11-07 | 25.00 |
| 2008-11-08 | 24.00 |
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