| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 17961.87 | 9 |
| 2015 | 18036.53 | 9 |
| 2014 | 24559.93 | 7 |
| 2013 | 24728.07 | 7 |
| 2012 | 24651.89 | 7 |
| 2011 | 26162.02 | 6 |
| 2010 | 22088.72 | 7 |
| 2009 | 16670.2 | 8 |
| 2008 | 16958.25 | 8 |
| 2007 | 13970.84 | 10 |
| 2006 | 11076.4 | 10 |
| 2005 | 8916.3 | 11 |
| 2004 | 6693.16 | 13 |
| 2003 | 5583.2 | 14 |
| 2002 | 5079.63 | 13 |
| 2001 | 5593.73 | 11 |
| 2000 | 6554.21 | 10 |
| 1999 | 5993.89 | 10 |
| 1998 | 8637.23 | 8 |
| 1997 | 8831.99 | 8 |
| 1996 | 8504.26 | 8 |
| 1995 | 7856.43 | 7 |
| 1994 | 5581.12 | 9 |
| 1993 | 4377.99 | 11 |
| 1992 | 4005.99 | 11 |
| 1991 | 6028.6 | 8 |
| 1990 | 4619.52 | 10 |
| 1989 | 4255.95 | 9 |
| 1988 | 3303.97 | 9 |
| 1987 | 2940.84 | 9 |
| 1986 | 2681.37 | 9 |