| 年月 | 单位：万股 |
| 2008-05 | 3.28 |
| 2008-04 | 0.00 |
| 2008-03 | 3.64 |
| 2008-02 | 0.00 |
| 2008-01 | 1.31 |
| 2007-12 | 0.74 |
| 2007-11 | 0.55 |
| 2007-10 | 11.06 |
| 2007-09 | 2.41 |
| 2007-08 | 2.07 |
| 2007-07 | 0.00 |
| 2007-06 | 0.00 |
| 2007-05 | 0.00 |
| 2007-04 | 0.00 |
| 2007-03 | 0.00 |
| 2007-02 | 0.00 |
| 2007-01 | 2.71 |
| 2006-12 | 0.55 |
| 2006-11 | 0.00 |
| 2006-10 | 0.00 |
| 2006-09 | 0.00 |
| 2006-08 | 0.56 |
| 2006-07 | 0.00 |
| 2006-06 | 0.00 |
| 2006-05 | 0.00 |
| 2006-04 | 0.00 |
| 2006-03 | 0.00 |
| 2006-02 | 0.00 |
| 2006-01 | 0.00 |
| 2005-12 | 0.00 |
| 2005-11 | 0.00 |
| 2005-10 | 0.00 |
| 2005-09 | 0.00 |
| 2005-08 | 0.00 |
| 2005-07 | 0.00 |
| 2005-06 | 0.00 |
| 2005-05 | 0.00 |
| 2005-04 | 0.00 |
| 2005-03 | 0.00 |
| 2005-02 | 0.27 |
| 2005-01 | 0.28 |
| 2004-12 | 0.21 |
| 2004-11 | 0.66 |
| 2004-10 | 1.23 |
| 2004-09 | 0.00 |
| 2004-08 | 0.37 |
| 2004-07 | 15.51 |
| 2004-05 | 0.37 |
| 2004-04 | 0.81 |
| 2004-03 | 1.14 |
| 2004-02 | 1.18 |
| 2004-01 | 0.45 |
| 2003-12 | 0.39 |
| 2003-11 | 0.47 |
| 2003-10 | 0.97 |
| 2003-09 | 0.89 |
| 2003-08 | 0.78 |
| 2003-07 | 2.67 |
| 2003-06 | 0.94 |
| 2003-05 | 0.31 |
| 2003-04 | 0.55 |
| 2003-03 | 0.44 |
| 2003-02 | 0.00 |
| 2003-01 | 1.62 |
| 2002-12 | 0.94 |
| 2002-11 | 0.70 |
| 2002-10 | 0.55 |
| 2002-09 | 0.37 |
| 2002-08 | 0.00 |
| 2002-07 | 0.80 |
| 2002-06 | 0.32 |
| 2002-05 | 0.58 |
| 2002-04 | 0.23 |
| 2002-03 | 0.00 |
| 2002-02 | 0.50 |
| 2002-01 | 1.34 |
| 2001-12 | 2.11 |
| 2001-11 | 3.34 |
| 2001-10 | 0.97 |
| 2001-09 | 3.53 |
| 2001-08 | 0.34 |
| 2001-07 | 0.00 |
| 2001-06 | 0.00 |
| 2001-05 | 0.39 |
| 2001-04 | 5.65 |
| 2001-03 | 14.27 |
| 2001-02 | 6.02 |
| 2001-01 | 5.43 |
| 2000-12 | 11.02 |
| 2000-11 | 3.11 |
| 2000-10 | 5.23 |
| 2000-09 | 9.73 |
| 2000-08 | 2.81 |
| 2000-07 | 6.46 |
| 2000-06 | 3.68 |
| 2000-05 | 0.51 |
| 2000-04 | 4.53 |
| 2000-03 | 2.65 |
| 2000-02 | 1.79 |
| 2000-01 | 4.51 |
| 1999-12 | 3.85 |
| 1999-11 | 4.43 |
| 1999-10 | 3.05 |
| 1999-09 | 4.75 |
| 1999-08 | 4.60 |
| 1999-07 | 0.40 |
| 1999-06 | 0.00 |
| 1999-05 | 1.74 |
| 1999-04 | 4.06 |
| 1999-03 | 5.57 |
| 1999-02 | 3.06 |
| 1999-01 | 5.97 |
| 1998-12 | 0.36 |
| 1998-11 | 0.22 |
| 1998-10 | 0.47 |
| 1998-09 | 0.72 |
| 1998-08 | 0.69 |
| 1998-07 | 0.37 |
| 1998-06 | 0.23 |
| 1998-05 | 0.23 |
| 1998-04 | 0.40 |
| 1998-03 | 0.42 |
| 1998-02 | 0.12 |
| 1998-01 | 1.98 |
| 1997-12 | 0.00 |
| 1997-11 | 0.00 |
| 1997-10 | 0.00 |
| 1997-09 | 0.00 |
| 1997-08 | 0.00 |
| 1997-07 | 0.00 |
| 1997-06 | 0.00 |
| 1997-05 | 0.00 |
| 1997-04 | 0.00 |
| 1997-03 | 0.00 |
| 1997-02 | 0.00 |
| 1997-01 | 0.00 |
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