| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 615 | 18 |
| 2015 | 689 | 19 |
| 2014 | 859 | 16 |
| 2013 | 811 | 16 |
| 2012 | 758 | 18 |
| 2011 | 710 | 19 |
| 2010 | 578 | 19 |
| 2009 | 441 | 22 |
| 2008 | 444 | 27 |
| 2007 | 347 | 27 |
| 2006 | 262 | 27 |
| 2005 | 215 | 29 |
| 2004 | 155 | 27 |
| 2003 | 139 | 27 |
| 2002 | 131 | 27 |
| 2001 | 154 | 24 |
| 2000 | 152 | 25 |
| 1999 | 130 | 24 |
| 1998 | 158 | 18 |
| 1997 | 145 | 20 |
| 1996 | 122 | 23 |
| 1995 | 132 | 21 |
| 1994 | 98 | 22 |
| 1993 | 92 | 22 |
| 1992 | 66 | 24 |
| 1991 | 64 | 21 |
| 1990 | 67 | 19 |
| 1989 | 51 | 21 |
| 1988 | 44 | 20 |
| 1987 | 37 | 20 |
| 1986 | 40 | 16 |