| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 3281 | 17 |
| 2015 | 3175 | 21 |
| 2014 | 3706 | 19 |
| 2013 | 3712 | 20 |
| 2012 | 3440 | 20 |
| 2011 | 3481 | 21 |
| 2010 | 2982 | 21 |
| 2009 | 2702 | 20 |
| 2008 | 3138 | 20 |
| 2007 | 2930 | 20 |
| 2006 | 2535 | 19 |
| 2005 | 2368 | 19 |
| 2004 | 2309 | 18 |
| 2003 | 2012 | 18 |
| 2002 | 1596 | 18 |
| 2001 | 1443 | 19 |
| 2000 | 1555 | 17 |
| 1999 | 1617 | 18 |
| 1998 | 1577 | 18 |
| 1997 | 1566 | 19 |
| 1996 | 1701 | 16 |
| 1995 | 1522 | 17 |
| 1994 | 1325 | 15 |
| 1993 | 1248 | 15 |
| 1992 | 1660 | 13 |
| 1991 | 1549 | 12 |
| 1990 | 1468 | 11 |
| 1989 | 1201 | 7 |
| 1988 | 1135 | 6 |
| 1987 | 1000 | 5 |
| 1986 | 824 | 8 |