| 时间 |
值 （亿美元） |
世界排名 |
| 2016 |
3404.4 |
26 |
| 2015 |
3422.7 |
31 |
| 2014 |
3625.7 |
31 |
| 2013 |
3306.1 |
33 |
| 2012 |
3187.9 |
33 |
| 2011 |
3225.2 |
32 |
| 2010 |
2937.1 |
34 |
| 2009 |
2387.3 |
36 |
| 2008 |
2863.8 |
32 |
| 2007 |
2373.6 |
35 |
| 2006 |
1826.1 |
35 |
| 2005 |
1524.1 |
36 |
| 2004 |
1322.8 |
37 |
| 2003 |
1124.8 |
37 |
| 2002 |
1033 |
36 |
| 2001 |
945.8 |
39 |