| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 964 | 25 |
| 2015 | 951 | 31 |
| 2014 | 1104 | 34 |
| 2013 | 1090 | 36 |
| 2012 | 1043 | 37 |
| 2011 | 1090 | 36 |
| 2010 | 997 | 32 |
| 2009 | 1023 | 27 |
| 2008 | 1150 | 28 |
| 2007 | 1063 | 27 |
| 2006 | 909 | 27 |
| 2005 | 849 | 26 |
| 2004 | 818 | 24 |
| 2003 | 714 | 23 |
| 2002 | 582 | 25 |
| 2001 | 554 | 24 |
| 2000 | 554 | 24 |
| 1999 | 616 | 22 |
| 1998 | 621 | 22 |
| 1997 | 608 | 22 |
| 1996 | 682 | 22 |
| 1995 | 695 | 20 |
| 1994 | 578 | 18 |
| 1993 | 539 | 18 |
| 1992 | 566 | 18 |
| 1991 | 513 | 18 |
| 1990 | 492 | 18 |
| 1989 | 390 | 13 |
| 1988 | 393 | 12 |
| 1987 | 369 | 12 |
| 1986 | 300 | 14 |