| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 3093 | 14 |
| 2015 | 3120 | 15 |
| 2014 | 3589 | 16 |
| 2013 | 3406 | 17 |
| 2012 | 3373 | 16 |
| 2011 | 3766 | 14 |
| 2010 | 3270 | 14 |
| 2009 | 2932 | 13 |
| 2008 | 4208 | 11 |
| 2007 | 3893 | 11 |
| 2006 | 3287 | 12 |
| 2005 | 2888 | 12 |
| 2004 | 2583 | 12 |
| 2003 | 2086 | 12 |
| 2002 | 1651 | 13 |
| 2001 | 1546 | 13 |
| 2000 | 1561 | 14 |
| 1999 | 1353 | 13 |
| 1998 | 1367 | 12 |
| 1997 | 1157 | 14 |
| 1996 | 1212 | 14 |
| 1995 | 1135 | 14 |
| 1994 | 889 | 14 |
| 1993 | 775 | 14 |
| 1992 | 998 | 11 |
| 1991 | 933 | 11 |
| 1990 | 877 | 10 |
| 1989 | 715 | 11 |
| 1988 | 596 | 11 |
| 1987 | 491 | 12 |
| 1986 | 351 | 13 |