| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 2155 | 25 |
| 2015 | 2185 | 29 |
| 2014 | 2688 | 26 |
| 2013 | 2747 | 25 |
| 2012 | 2632 | 25 |
| 2011 | 2543 | 26 |
| 2010 | 2258 | 26 |
| 2009 | 2073 | 25 |
| 2008 | 2243 | 24 |
| 2007 | 2017 | 24 |
| 2006 | 1662 | 25 |
| 2005 | 1538 | 26 |
| 2004 | 1385 | 25 |
| 2003 | 1233 | 25 |
| 2002 | 1045 | 24 |
| 2001 | 897 | 25 |
| 2000 | 854 | 25 |
| 1999 | 895 | 25 |
| 1998 | 872 | 25 |
| 1997 | 859 | 25 |
| 1996 | 876 | 25 |
| 1995 | 841 | 24 |
| 1994 | 721 | 22 |
| 1993 | 695 | 22 |
| 1992 | 755 | 20 |
| 1991 | 700 | 21 |
| 1990 | 675 | 20 |
| 1989 | 580 | 16 |
| 1988 | 581 | 15 |
| 1987 | 518 | 15 |
| 1986 | 424 | 15 |