| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 3716 | 14 |
| 2015 | 3666 | 16 |
| 2014 | 4162 | 17 |
| 2013 | 3944 | 18 |
| 2012 | 3905 | 17 |
| 2011 | 4340 | 14 |
| 2010 | 3840 | 14 |
| 2009 | 3571 | 12 |
| 2008 | 4977 | 11 |
| 2007 | 4689 | 10 |
| 2006 | 3893 | 10 |
| 2005 | 3433 | 10 |
| 2004 | 3105 | 10 |
| 2003 | 2509 | 10 |
| 2002 | 2010 | 11 |
| 2001 | 1891 | 11 |
| 2000 | 1883 | 11 |
| 1999 | 1795 | 9 |
| 1998 | 1646 | 10 |
| 1997 | 1503 | 13 |
| 1996 | 1488 | 13 |
| 1995 | 1404 | 13 |
| 1994 | 1126 | 11 |
| 1993 | 1005 | 12 |
| 1992 | 1243 | 11 |
| 1991 | 1132 | 10 |
| 1990 | 1062 | 10 |
| 1989 | 858 | 12 |
| 1988 | 727 | 11 |
| 1987 | 590 | 11 |
| 1986 | 429 | 11 |