| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 2741 | 13 |
| 2015 | 3186 | 14 |
| 2014 | 3718 | 15 |
| 2013 | 3947 | 15 |
| 2012 | 4066 | 15 |
| 2011 | 3698 | 16 |
| 2010 | 2879 | 17 |
| 2009 | 2503 | 16 |
| 2008 | 2703 | 16 |
| 2007 | 2195 | 16 |
| 2006 | 1918 | 15 |
| 2005 | 1705 | 15 |
| 2004 | 1466 | 15 |
| 2003 | 1123 | 16 |
| 2002 | 931 | 16 |
| 2001 | 898 | 16 |
| 2000 | 1023 | 14 |
| 1999 | 961 | 14 |
| 1998 | 1019 | 13 |
| 1997 | 1107 | 14 |
| 1996 | 1050 | 14 |
| 1995 | 980 | 15 |
| 1994 | 871 | 13 |
| 1993 | 844 | 12 |
| 1992 | 881 | 12 |
| 1991 | 908 | 10 |
| 1990 | 903 | 11 |