| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 2021.2 | 40 |
| 2015 | 1976.3 | 44 |
| 2014 | 2292 | 44 |
| 2013 | 2238 | 46 |
| 2012 | 2174.7 | 45 |
| 2011 | 2553.8 | 38 |
| 2010 | 2563.2 | 36 |
| 2009 | 2606.2 | 32 |
| 2008 | 2874.6 | 31 |
| 2007 | 2585.2 | 31 |
| 2006 | 2257.5 | 30 |
| 2005 | 2152.7 | 29 |
| 2004 | 2048 | 28 |
| 2003 | 1764 | 27 |
| 2002 | 1453.3 | 29 |
| 2001 | 1339.6 | 30 |
| 2000 | 1314.3 | 32 |
| 1999 | 1406.6 | 29 |
| 1998 | 1353.5 | 30 |
| 1997 | 1264.1 | 32 |
| 1996 | 1313.5 | 32 |
| 1995 | 1256.7 | 32 |
| 1994 | 1065.9 | 32 |
| 1993 | 1016.5 | 31 |
| 1992 | 1155.6 | 30 |
| 1991 | 957.3 | 31 |
| 1990 | 840.1 | 33 |
| 1989 | 642 | 34 |
| 1988 | 608.2 | 34 |
| 1987 | 505.5 | 32 |
| 1986 | 395.4 | 34 |