| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 2874 | 15 |
| 2015 | 2825 | 17 |
| 2014 | 3245 | 18 |
| 2013 | 3178 | 19 |
| 2012 | 2953 | 20 |
| 2011 | 3066 | 17 |
| 2010 | 2544 | 16 |
| 2009 | 2273 | 16 |
| 2008 | 2815 | 17 |
| 2007 | 2533 | 16 |
| 2006 | 2137 | 16 |
| 2005 | 1926 | 16 |
| 2004 | 1826 | 16 |
| 2003 | 1561 | 15 |
| 2002 | 1257 | 14 |
| 2001 | 1167 | 15 |
| 2000 | 1153 | 15 |
| 1999 | 1044 | 15 |
| 1998 | 1120 | 14 |
| 1997 | 1008 | 15 |
| 1996 | 1072 | 14 |
| 1995 | 978 | 14 |
| 1994 | 767 | 14 |
| 1993 | 646 | 14 |
| 1992 | 643 | 14 |
| 1991 | 602 | 14 |
| 1990 | 556 | 15 |
| 1989 | 445 | 16 |
| 1988 | 403 | 15 |
| 1987 | 342 | 15 |
| 1986 | 272 | 15 |