| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 1038 | 24 |
| 2015 | 1192 | 25 |
| 2014 | 1696 | 20 |
| 2013 | 1863 | 20 |
| 2012 | 1877 | 20 |
| 2011 | 1845 | 20 |
| 2010 | 1491 | 22 |
| 2009 | 1325 | 23 |
| 2008 | 1863 | 20 |
| 2007 | 1491 | 21 |
| 2006 | 1371 | 19 |
| 2005 | 1173 | 19 |
| 2004 | 926 | 21 |
| 2003 | 764 | 21 |
| 2002 | 650 | 20 |
| 2001 | 612 | 21 |
| 2000 | 625 | 22 |
| 1999 | 480 | 26 |
| 1998 | 425 | 26 |
| 1997 | 508 | 25 |
| 1996 | 506 | 25 |
| 1995 | 438 | 26 |
| 1994 | 355 | 23 |
| 1993 | 333 | 23 |
| 1992 | 367 | 24 |
| 1991 | 346 | 24 |
| 1990 | 354 | 24 |
| 1989 | 300 | 20 |
| 1988 | 280 | 20 |
| 1987 | 269 | 20 |
| 1986 | 229 | 18 |