| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 2640 | 18 |
| 2015 | 2674 | 19 |
| 2014 | 3227 | 19 |
| 2013 | 3148 | 20 |
| 2012 | 2968 | 19 |
| 2011 | 3029 | 18 |
| 2010 | 2264 | 18 |
| 2009 | 1649 | 20 |
| 2008 | 1948 | 22 |
| 2007 | 1502 | 25 |
| 2006 | 1218 | 27 |
| 2005 | 996 | 28 |
| 2004 | 766 | 29 |
| 2003 | 590 | 30 |
| 2002 | 493 | 30 |
| 2001 | 434 | 30 |
| 2000 | 424 | 31 |
| 1999 | 357 | 32 |
| 1998 | 334 | 31 |
| 1997 | 350 | 31 |
| 1996 | 331 | 31 |
| 1995 | 306 | 30 |
| 1994 | 250 | 32 |
| 1993 | 216 | 31 |
| 1992 | 196 | 32 |
| 1991 | 177 | 32 |
| 1990 | 180 | 32 |
| 1989 | 158 | 32 |
| 1988 | 133 | 32 |
| 1987 | 113 | 35 |
| 1986 | 94 | 33 |