| 年月 | 单位：亿元 |
| 2008-12 | 1.30 |
| 2008-11 | 1.30 |
| 2008-10 | 1.50 |
| 2008-09 | 1.40 |
| 2008-08 | 1.40 |
| 2008-07 | 1.70 |
| 2008-06 | 1.20 |
| 2008-05 | 1.10 |
| 2008-04 | 1.10 |
| 2008-03 | 1.60 |
| 2008-02 | 1.30 |
| 2008-01 | 1.70 |
| 2007-12 | 1.80 |
| 2007-11 | 1.00 |
| 2007-10 | 0.80 |
| 2007-09 | 1.20 |
| 2007-08 | 0.80 |
| 2007-07 | 1.00 |
| 2007-06 | 1.00 |
| 2007-05 | 0.90 |
| 2007-04 | 0.90 |
| 2007-03 | 0.70 |
| 2007-02 | 2.60 |
| 2007-01 | 2.30 |
| 2006-12 | 1.50 |
| 2006-11 | 0.70 |
| 2006-10 | 0.60 |
| 2006-09 | 0.60 |
| 2006-08 | 0.60 |
| 2006-07 | 0.60 |
| 2006-06 | 0.60 |
| 2006-05 | 0.90 |
| 2006-04 | 0.70 |
| 2006-03 | 0.70 |
| 2006-02 | 0.60 |
| 2006-01 | 0.70 |
| 2005-12 | 0.70 |
| 2005-11 | 0.80 |
| 2005-10 | 0.70 |
| 2005-09 | 0.70 |
| 2005-08 | 0.90 |
| 2005-07 | 0.60 |
| 2005-06 | 0.50 |
| 2005-05 | 1.00 |
| 2005-04 | 1.00 |
| 2005-03 | 1.40 |
| 2005-02 | 1.30 |
| 2005-01 | 2.10 |
| 2004-12 | 1.00 |
| 2004-11 | 0.70 |
| 2004-10 | 0.90 |
| 2004-09 | 0.70 |
| 2004-08 | 0.70 |
| 2004-07 | 0.70 |
| 2004-06 | 0.60 |
| 2004-05 | 0.70 |
| 2004-04 | 0.50 |
| 2004-03 | 0.60 |
| 2004-02 | 0.30 |
| 2004-01 | 0.40 |
| 2003-12 | 0.40 |
| 2003-11 | 0.50 |
| 2003-10 | 0.60 |
| 2003-09 | 0.50 |
| 2003-08 | 0.50 |
| 2003-07 | 0.10 |
| 2003-06 | 0.50 |
| 2003-05 | 0.50 |
| 2003-04 | 0.50 |
| 2003-03 | 0.40 |
| 2003-02 | 0.40 |
| 2003-01 | 0.50 |
| 2002-12 | 0.40 |
| 2002-11 | 0.30 |
| 2002-10 | 0.30 |
| 2002-09 | 0.30 |
| 2002-08 | 0.30 |
| 2002-07 | 0.30 |
| 2002-06 | 0.50 |
| 2002-05 | 0.30 |
| 2002-04 | 0.20 |
| 2002-03 | 0.20 |
| 2002-02 | 0.20 |
| 2002-01 | 0.30 |
| 2001-12 | 0.30 |
| 2001-11 | 0.40 |
| 2001-10 | 0.50 |
| 2001-09 | 0.40 |
| 2001-08 | 0.30 |
| 2001-07 | 0.30 |
| 2001-06 | 0.40 |
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