| 日期 | 单位：% |
| 2019-09-18 | 购买后可见 » |
| 2016-03-16 | 购买后可见 » |
| 2014-09-10 | 购买后可见 » |
| 2014-06-11 | 购买后可见 » |
| 2013-11-13 | 购买后可见 » |
| 2013-05-08 | 购买后可见 » |
| 2012-07-11 | 购买后可见 » |
| 2011-12-14 | 购买后可见 » |
| 2011-11-09 | 购买后可见 » |
| 2011-07-13 | 购买后可见 » |
| 2011-04-13 | 购买后可见 » |
| 2009-05-13 | 购买后可见 » |
| 2009-04-08 | 购买后可见 » |
| 2009-03-11 | 购买后可见 » |
| 2009-01-21 | 购买后可见 » |
| 2008-12-10 | 购买后可见 » |
| 2008-11-12 | 购买后可见 » |
| 2008-10-15 | 购买后可见 » |
| 2008-07-09 | 购买后可见 » |
| 2007-06-13 | 购买后可见 » |
| 2007-03-14 | 购买后可见 » |
| 2006-12-13 | 3.50 |
| 2006-10-11 | 3.25 |
| 2006-08-09 | 3.00 |
| 2006-06-15 | 2.75 |
| 2006-03-08 | 2.50 |
| 2005-12-06 | 2.25 |
| 2003-06-06 | 2.00 |
| 2003-03-07 | 2.50 |
| 2002-12-06 | 2.75 |
| 2001-11-09 | 3.25 |
| 2001-09-18 | 3.75 |
| 2001-08-31 | 4.25 |
| 2001-05-11 | 4.50 |
| 2000-10-06 | 4.75 |
| 2000-09-01 | 4.50 |
| 2000-06-09 | 4.25 |
| 2000-04-28 | 3.75 |
| 2000-03-17 | 3.50 |
| 2000-02-04 | 3.25 |
| 1999-11-05 | 3.00 |
| 1999-04-09 | 2.50 |
| 1999-01-01 | 3.00 |
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