| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2015 | 685.3 | 28 |
| 2014 | 670.9 | 28 |
| 2013 | 661.1 | 28 |
| 2012 | 646.3 | 28 |
| 2011 | 632.7 | 28 |
| 2010 | 619.8 | 29 |
| 2009 | 618.6 | 28 |
| 2008 | 597.5 | 27 |
| 2007 | 608.9 | 27 |
| 2006 | 608.1 | 28 |
| 2005 | 607.2 | 27 |
| 2004 | 600.7 | 25 |
| 2003 | 596 | 25 |
| 2002 | 582.2 | 25 |
| 2001 | 572.8 | 25 |
| 2000 | 560.2 | 25 |
| 1999 | 545.6 | 24 |
| 1998 | 541.8 | 24 |
| 1997 | 539.2 | 24 |
| 1996 | 535.9 | 24 |
| 1995 | 527.8 | 24 |
| 1994 | 525.2 | 22 |
| 1993 | 514.4 | 23 |
| 1992 | 520.5 | 22 |
| 1991 | 515.8 | 22 |
| 1990 | 506.3 | 22 |
| 1989 | 483.8 | 20 |
| 1988 | 444.9 | 20 |
| 1987 | 425.4 | 23 |
| 1986 | 415.8 | 21 |