| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 3140.8 | 28 |
| 2015 | 3020.1 | 35 |
| 2014 | 2908.6 | 38 |
| 2013 | 2740.4 | 40 |
| 2012 | 2596.6 | 39 |
| 2011 | 2389.5 | 42 |
| 2010 | 2152.1 | 40 |
| 2009 | 1972 | 41 |
| 2008 | 1969.7 | 41 |
| 2007 | 1890.1 | 39 |
| 2006 | 1719.3 | 36 |
| 2005 | 1593.9 | 35 |
| 2004 | 1543.7 | 34 |
| 2003 | 1467 | 32 |
| 2002 | 1527.8 | 28 |
| 2001 | 1614.6 | 24 |
| 2000 | 1641 | 24 |
| 1999 | 1572.1 | 25 |
| 1998 | 1679.8 | 25 |
| 1997 | 1833.1 | 24 |
| 1996 | 1620.9 | 26 |
| 1995 | 1511.3 | 27 |
| 1994 | 1342.4 | 26 |
| 1993 | 1122.3 | 30 |
| 1992 | 988.5 | 32 |
| 1991 | 829.1 | 33 |
| 1990 | 703.6 | 35 |
| 1989 | 609.1 | 36 |
| 1988 | 543.8 | 35 |
| 1987 | 453.5 | 35 |
| 1986 | 373.4 | 36 |