| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 3739 | 12 |
| 2015 | 3806 | 13 |
| 2014 | 3969 | 15 |
| 2013 | 3800 | 15 |
| 2012 | 3708 | 16 |
| 2011 | 3496 | 16 |
| 2010 | 2983 | 15 |
| 2009 | 2297 | 15 |
| 2008 | 2913 | 16 |
| 2007 | 2718 | 15 |
| 2006 | 2500 | 15 |
| 2005 | 2142 | 15 |
| 2004 | 1880 | 14 |
| 2003 | 1654 | 13 |
| 2002 | 1607 | 13 |
| 2001 | 1585 | 12 |
| 2000 | 1664 | 13 |
| 1999 | 1364 | 13 |
| 1998 | 1175 | 13 |
| 1997 | 1104 | 14 |
| 1996 | 960 | 15 |
| 1995 | 795 | 18 |
| 1994 | 609 | 18 |
| 1993 | 519 | 16 |
| 1992 | 462 | 18 |
| 1991 | 427 | 18 |
| 1990 | 407 | 19 |
| 1989 | 352 | 18 |
| 1988 | 307 | 20 |
| 1987 | 276 | 17 |
| 1986 | 218 | 20 |