| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 2153.6 | 2 |
| 2015 | 2140.9 | 2 |
| 2014 | 2007.7 | 2 |
| 2013 | 1798.8 | 2 |
| 2012 | 1573.9 | 2 |
| 2011 | 1379.7 | 2 |
| 2010 | 1157.1 | 2 |
| 2009 | 1056.4 | 2 |
| 2008 | 863.6 | 2 |
| 2007 | 680.1 | 2 |
| 2006 | 553.4 | 3 |
| 2005 | 459.2 | 4 |
| 2004 | 403.5 | 5 |
| 2003 | 351.3 | 5 |
| 2002 | 321.4 | 5 |
| 2001 | 278.8 | 5 |
| 2000 | 229.3 | 6 |
| 1999 | 210.3 | 7 |
| 1998 | 175.3 | 8 |
| 1997 | 161 | 9 |
| 1996 | 145.6 | 9 |
| 1995 | 126.1 | 11 |
| 1994 | 100.5 | 12 |
| 1993 | 90.3 | 12 |
| 1992 | 107.5 | 12 |
| 1991 | 92.3 | 14 |
| 1990 | 92.2 | 13 |
| 1989 | 86.9 | 13 |