| 年月 | 单位：千美元 |
| 2007-12 | 1609.00 |
| 2007-11 | 2143.00 |
| 2007-10 | 2511.00 |
| 2007-09 | 2309.00 |
| 2007-08 | 3756.00 |
| 2007-07 | 2072.00 |
| 2007-06 | 3549.00 |
| 2007-05 | 4075.00 |
| 2007-04 | 3800.00 |
| 2007-03 | 2859.00 |
| 2007-02 | 4216.00 |
| 2007-01 | 3355.00 |
| 2006-12 | 4378.00 |
| 2006-11 | 2578.00 |
| 2006-10 | 2548.00 |
| 2006-09 | 1524.00 |
| 2006-08 | 3444.00 |
| 2006-07 | 2776.00 |
| 2006-06 | 2348.00 |
| 2006-05 | 3601.00 |
| 2006-04 | 5930.00 |
| 2006-03 | 7674.00 |
| 2006-02 | 3956.00 |
| 2006-01 | 3398.00 |
| 2005-12 | 2417.00 |
| 2005-11 | 3061.00 |
| 2005-10 | 2753.00 |
| 2005-09 | 3316.00 |
| 2005-08 | 2782.00 |
| 2005-07 | 1948.00 |
| 2005-06 | 2232.00 |
| 2005-05 | 2285.00 |
| 2005-04 | 6020.00 |
| 2005-03 | 3783.00 |
| 2005-02 | 3473.00 |
| 2005-01 | 3063.00 |
| 2004-12 | 4900.00 |
| 2004-11 | 6002.00 |
| 2004-10 | 3547.00 |
| 2004-09 | 3300.00 |
| 2004-08 | 3121.00 |
| 2004-07 | 3257.00 |
| 2004-06 | 3508.00 |
| 2004-05 | 4052.00 |
| 2004-04 | 4598.00 |
| 2004-03 | 4117.00 |
| 2004-02 | 1917.00 |
| 2004-01 | 1549.00 |
| 2003-12 | 3583.00 |
| 2003-11 | 2737.00 |
| 2003-10 | 2813.00 |
| 2003-09 | 1488.00 |
| 2003-08 | 1851.00 |
| 2003-07 | 2348.00 |
| 2003-06 | 2431.00 |
| 2003-05 | 2222.00 |
| 2003-04 | 3008.00 |
| 2003-03 | 1773.00 |
| 2003-02 | 1461.00 |
| 2003-01 | 2969.00 |
| 2002-12 | 4908.00 |
| 2002-11 | 4662.00 |
| 2002-10 | 3250.00 |
| 2002-09 | 3046.00 |
| 2002-08 | 3145.00 |
| 2002-07 | 3049.00 |
| 2002-06 | 3364.00 |
| 2002-05 | 3356.00 |
| 2002-04 | 4648.00 |
| 2002-03 | 5418.00 |
| 2002-02 | 2946.00 |
| 2002-01 | 4929.00 |
| 2001-12 | 2829.00 |
| 2001-11 | 2350.00 |
| 2001-10 | 2807.00 |
| 2001-09 | 2572.00 |
| 2001-08 | 2235.00 |
| 2001-07 | 3161.00 |
| 2001-06 | 4791.00 |
| 2001-05 | 4168.00 |
| 2001-04 | 5183.00 |
| 2001-03 | 8384.00 |
| 2001-02 | 5165.00 |
| 2001-01 | 3543.00 |
| 2000-12 | 3731.00 |
| 2000-11 | 3047.00 |
| 2000-10 | 3082.00 |
| 2000-09 | 3004.00 |
| 2000-08 | 5875.00 |
| 2000-07 | 7249.00 |
| 2000-06 | 5480.00 |
| 2000-05 | 6548.00 |
| 2000-04 | 7220.00 |
| 2000-03 | 8838.00 |
| 2000-02 | 4865.00 |
| 2000-01 | 2827.00 |
| 1999-12 | 3376.00 |
| 1999-11 | 4332.00 |
| 1999-10 | 7550.00 |
| 1999-09 | 8147.00 |
| 1999-08 | 5192.00 |
| 1999-07 | 5296.00 |
| 1999-06 | 3675.00 |
| 1999-05 | 3673.00 |
| 1999-04 | 2812.00 |
| 1999-03 | 3491.00 |
| 1999-02 | 4807.00 |
| 1999-01 | 2589.00 |
| 1998-12 | 3608.00 |
| 1998-11 | 1888.00 |
| 1998-10 | 1506.00 |
| 1998-09 | 2697.00 |
| 1998-08 | 3407.00 |
| 1998-07 | 3005.00 |
| 1998-06 | 2498.00 |
| 1998-05 | 2984.00 |
| 1998-04 | 4023.00 |
| 1998-03 | 6920.00 |
| 1998-02 | 4766.00 |
| 1998-01 | 3177.00 |
前瞻产业研究院 咨询·服务