| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 1919.2 | 43 |
| 2015 | 1937.8 | 46 |
| 2014 | 2043.4 | 48 |
| 2013 | 2015.6 | 49 |
| 2012 | 1882.6 | 49 |
| 2011 | 1631.4 | 52 |
| 2010 | 1416.6 | 51 |
| 2009 | 1150.6 | 54 |
| 2008 | 1193.2 | 53 |
| 2007 | 946.6 | 54 |
| 2006 | 804.1 | 53 |
| 2005 | 712.4 | 54 |
| 2004 | 641.7 | 54 |
| 2003 | 584.9 | 53 |
| 2002 | 551.6 | 51 |
| 2001 | 530 | 50 |
| 2000 | 527.8 | 48 |
| 1999 | 514 | 49 |
| 1998 | 585.8 | 45 |
| 1997 | 607.7 | 47 |
| 1996 | 580.3 | 46 |
| 1995 | 563.7 | 47 |
| 1994 | 464 | 48 |
| 1993 | 365 | 50 |
| 1992 | 372 | 48 |
| 1991 | 354.5 | 47 |
| 1990 | 259 | 56 |
| 1989 | 224.7 | 52 |
| 1988 | 159.1 | 55 |
| 1987 | 211.2 | 53 |
| 1986 | 154.9 | 56 |