| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 952 | 33 |
| 2015 | 955 | 35 |
| 2014 | 1115 | 35 |
| 2013 | 1107 | 36 |
| 2012 | 1055 | 37 |
| 2011 | 1119 | 37 |
| 2010 | 964 | 34 |
| 2009 | 940 | 33 |
| 2008 | 1169 | 33 |
| 2007 | 1032 | 33 |
| 2006 | 926 | 32 |
| 2005 | 851 | 31 |
| 2004 | 771 | 28 |
| 2003 | 665 | 28 |
| 2002 | 575 | 28 |
| 2001 | 517 | 28 |
| 2000 | 513 | 28 |
| 1999 | 503 | 26 |
| 1998 | 490 | 26 |
| 1997 | 493 | 27 |
| 1996 | 514 | 24 |
| 1995 | 509 | 23 |
| 1994 | 423 | 25 |
| 1993 | 378 | 23 |
| 1992 | 416 | 21 |
| 1991 | 378 | 21 |
| 1990 | 369 | 21 |
| 1989 | 296 | 21 |
| 1988 | 285 | 21 |
| 1987 | 257 | 21 |
| 1986 | 213 | 21 |