| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2015 | 11944.2 | 2 |
| 2014 | 11750.4 | 2 |
| 2013 | 11687.9 | 2 |
| 2012 | 11515.1 | 2 |
| 2011 | 11325.1 | 2 |
| 2010 | 11110.4 | 2 |
| 2009 | 10899 | 2 |
| 2008 | 10680.9 | 2 |
| 2007 | 10689.4 | 2 |
| 2006 | 10567.4 | 2 |
| 2005 | 10560.3 | 2 |
| 2004 | 10477.1 | 2 |
| 2003 | 10355.3 | 2 |
| 2002 | 10167.2 | 2 |
| 2001 | 9904.5 | 2 |
| 2000 | 9577.9 | 2 |
| 1999 | 9220.1 | 2 |
| 1998 | 8910.7 | 2 |
| 1997 | 8803.1 | 2 |
| 1996 | 8677.4 | 2 |
| 1995 | 8483.3 | 2 |
| 1994 | 8168.2 | 2 |
| 1993 | 7888.7 | 2 |
| 1992 | 7644.4 | 2 |
| 1991 | 7445.3 | 2 |
| 1990 | 7154.9 | 2 |
| 1989 | 6925.6 | 2 |
| 1988 | 6730 | 2 |
| 1987 | 6474.6 | 2 |
| 1986 | 6230.6 | 2 |