| 年月 | 单位：万辆 |
| 2009-05 | 16.30 |
| 2009-04 | 16.40 |
| 2009-03 | 18.70 |
| 2009-02 | 14.40 |
| 2009-01 | 12.80 |
| 2008-12 | 3.37 |
| 2008-11 | 3.15 |
| 2008-10 | 2.75 |
| 2008-09 | 3.26 |
| 2008-08 | 2.56 |
| 2008-07 | 3.23 |
| 2008-06 | 3.14 |
| 2008-05 | 3.43 |
| 2008-04 | 4.08 |
| 2008-03 | 4.48 |
| 2008-02 | 3.02 |
| 2008-01 | 3.73 |
| 2007-12 | 4.07 |
| 2007-11 | 4.76 |
| 2007-10 | 4.33 |
| 2007-09 | 4.46 |
| 2007-08 | 3.60 |
| 2007-07 | 3.89 |
| 2007-06 | 4.20 |
| 2007-05 | 4.13 |
| 2007-04 | 4.91 |
| 2007-03 | 4.69 |
| 2007-02 | 3.84 |
| 2007-01 | 5.37 |
| 2006-12 | 4.91 |
| 2006-11 | 4.58 |
| 2006-10 | 4.59 |
| 2006-09 | 4.89 |
| 2006-08 | 3.18 |
| 2006-07 | 3.01 |
| 2006-06 | 3.97 |
| 2006-05 | 4.58 |
| 2006-04 | 4.94 |
| 2006-03 | 6.36 |
| 2006-02 | 4.22 |
| 2006-01 | 4.28 |
| 2005-12 | 4.97 |
| 2005-11 | 4.63 |
| 2005-10 | 3.83 |
| 2005-09 | 4.20 |
| 2005-08 | 3.41 |
| 2005-07 | 3.43 |
| 2005-06 | 3.89 |
| 2005-05 | 3.76 |
| 2005-04 | 4.62 |
| 2005-03 | 5.14 |
| 2005-02 | 3.39 |
| 2005-01 | 3.80 |
| 2004-12 | 4.68 |
| 2004-11 | 5.21 |
| 2004-10 | 4.26 |
| 2004-09 | 4.12 |
| 2004-08 | 3.74 |
| 2004-07 | 3.60 |
| 2004-06 | 4.29 |
| 2004-05 | 4.79 |
| 2004-04 | 5.88 |
| 2004-03 | 5.96 |
| 2004-02 | 4.48 |
| 2004-01 | 1.81 |
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