| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 2032 | 23 |
| 2015 | 2025 | 27 |
| 2014 | 2336 | 27 |
| 2013 | 2274 | 26 |
| 2012 | 2251 | 25 |
| 2011 | 2364 | 24 |
| 2010 | 1989 | 24 |
| 2009 | 1662 | 25 |
| 2008 | 2238 | 22 |
| 2007 | 2014 | 19 |
| 2006 | 1705 | 19 |
| 2005 | 1506 | 19 |
| 2004 | 1368 | 18 |
| 2003 | 1156 | 17 |
| 2002 | 944 | 17 |
| 2001 | 900 | 17 |
| 2000 | 993 | 17 |
| 1999 | 947 | 17 |
| 1998 | 926 | 17 |
| 1997 | 875 | 19 |
| 1996 | 883 | 18 |
| 1995 | 835 | 19 |
| 1994 | 688 | 18 |
| 1993 | 586 | 19 |
| 1992 | 701 | 17 |
| 1991 | 681 | 15 |
| 1990 | 726 | 14 |
| 1989 | 638 | 14 |
| 1988 | 587 | 13 |
| 1987 | 520 | 12 |
| 1986 | 415 | 12 |