| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 12831.62 | 12 |
| 2015 | 13658.65 | 12 |
| 2014 | 20636.62 | 9 |
| 2013 | 22306.25 | 8 |
| 2012 | 21701.44 | 8 |
| 2011 | 20317.69 | 9 |
| 2010 | 15249.16 | 11 |
| 2009 | 12226.44 | 12 |
| 2008 | 16608.44 | 9 |
| 2007 | 12997.05 | 11 |
| 2006 | 9899.31 | 12 |
| 2005 | 7640.17 | 14 |
| 2004 | 5910.17 | 16 |
| 2003 | 4303.48 | 16 |
| 2002 | 3451.1 | 16 |
| 2001 | 3066.03 | 16 |
| 2000 | 2597.08 | 21 |
| 1999 | 1959.06 | 23 |
| 1998 | 2709.53 | 20 |
| 1997 | 4049.27 | 16 |
| 1996 | 3917.2 | 15 |
| 1995 | 3955.31 | 13 |
| 1994 | 3950.77 | 13 |
| 1993 | 4350.84 | 12 |
| 1992 | 4602.91 | 9 |
| 1991 | 5179.63 | 10 |
| 1990 | 5168.14 | 9 |
| 1989 | 5065 | 8 |