| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2015 | 5922.2 | 20 |
| 2014 | 6198.5 | 20 |
| 2013 | 6018.8 | 19 |
| 2012 | 5956.6 | 19 |
| 2011 | 6372.7 | 19 |
| 2010 | 5188.7 | 19 |
| 2009 | 4987.5 | 19 |
| 2008 | 4931 | 21 |
| 2007 | 4231.9 | 21 |
| 2006 | 3927.2 | 19 |
| 2005 | 3779.1 | 18 |
| 2004 | 3582.7 | 18 |
| 2003 | 3284 | 17 |
| 2002 | 2808.8 | 17 |
| 2001 | 2629.9 | 18 |
| 2000 | 2549.9 | 18 |
| 1999 | 2761.5 | 17 |
| 1998 | 2816 | 17 |
| 1997 | 2719.8 | 18 |
| 1996 | 3171.8 | 17 |
| 1995 | 3271.9 | 17 |
| 1994 | 2783.6 | 17 |
| 1993 | 2501.6 | 17 |
| 1992 | 2623.9 | 18 |
| 1991 | 2575.9 | 18 |
| 1990 | 2567.8 | 17 |
| 1989 | 2019.9 | 18 |
| 1988 | 2074.1 | 14 |
| 1987 | 1909.5 | 14 |
| 1986 | 1520.5 | 15 |