| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 1803 | 27 |
| 2015 | 1874 | 28 |
| 2014 | 2181 | 28 |
| 2013 | 2169 | 28 |
| 2012 | 2155 | 27 |
| 2011 | 2076 | 28 |
| 2010 | 1811 | 28 |
| 2009 | 1439 | 29 |
| 2008 | 1781 | 29 |
| 2007 | 1670 | 26 |
| 2006 | 1471 | 23 |
| 2005 | 1306 | 24 |
| 2004 | 1185 | 23 |
| 2003 | 962 | 22 |
| 2002 | 918 | 19 |
| 2001 | 863 | 19 |
| 2000 | 944 | 18 |
| 1999 | 762 | 20 |
| 1998 | 677 | 21 |
| 1997 | 924 | 17 |
| 1996 | 910 | 17 |
| 1995 | 870 | 17 |
| 1994 | 676 | 20 |
| 1993 | 529 | 21 |
| 1992 | 442 | 24 |
| 1991 | 400 | 25 |
| 1990 | 319 | 27 |
| 1989 | 254 | 28 |
| 1988 | 198 | 29 |
| 1987 | 158 | 31 |
| 1986 | 140 | 32 |