| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 2356 | 4 |
| 2015 | 2317 | 4 |
| 2014 | 2519 | 4 |
| 2013 | 2277 | 4 |
| 2012 | 2021 | 4 |
| 2011 | 2022 | 4 |
| 2010 | 1809 | 3 |
| 2009 | 1752 | 4 |
| 2008 | 1938 | 4 |
| 2007 | 1682 | 4 |
| 2006 | 1452 | 4 |
| 2005 | 1334 | 5 |
| 2004 | 1244 | 5 |
| 2003 | 1085 | 5 |
| 2002 | 940 | 5 |
| 2001 | 862 | 5 |
| 2000 | 835 | 5 |
| 1999 | 901 | 5 |
| 1998 | 736 | 5 |
| 1997 | 690 | 5 |
| 1996 | 735 | 4 |
| 1995 | 730 | 3 |
| 1994 | 621 | 3 |
| 1993 | 689 | 3 |
| 1992 | 721 | 3 |
| 1991 | 633 | 3 |
| 1990 | 609 | 3 |
| 1989 | 457 | 3 |
| 1988 | 425 | 3 |
| 1987 | 391 | 3 |
| 1986 | 323 | 3 |