| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 1020.1 | 19 |
| 2015 | 997 | 21 |
| 2014 | 976.7 | 21 |
| 2013 | 951.4 | 21 |
| 2012 | 942.2 | 21 |
| 2011 | 927.7 | 21 |
| 2010 | 918.8 | 21 |
| 2009 | 899.2 | 21 |
| 2008 | 863.6 | 21 |
| 2007 | 843.2 | 21 |
| 2006 | 826.4 | 21 |
| 2005 | 810.7 | 21 |
| 2004 | 795.9 | 21 |
| 2003 | 785.6 | 19 |
| 2002 | 775.5 | 20 |
| 2001 | 753.9 | 20 |
| 2000 | 724.2 | 22 |
| 1999 | 709.5 | 20 |
| 1998 | 687.8 | 20 |
| 1997 | 664.2 | 20 |
| 1996 | 645.3 | 20 |
| 1995 | 627.6 | 20 |
| 1994 | 621.3 | 20 |
| 1993 | 612.5 | 20 |
| 1992 | 591 | 20 |
| 1991 | 557.2 | 20 |
| 1990 | 526.5 | 20 |
| 1989 | 503.9 | 19 |
| 1988 | 488.7 | 19 |
| 1987 | 493.5 | 18 |
| 1986 | 473.4 | 18 |