| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 981.4 | 54 |
| 2015 | 1031.7 | 60 |
| 2014 | 1038.3 | 60 |
| 2013 | 973.5 | 61 |
| 2012 | 891.7 | 63 |
| 2011 | 810.6 | 62 |
| 2010 | 726.9 | 63 |
| 2009 | 635.2 | 65 |
| 2008 | 616 | 68 |
| 2007 | 503.6 | 66 |
| 2006 | 463.5 | 64 |
| 2005 | 418.7 | 63 |
| 2004 | 371.6 | 64 |
| 2003 | 331 | 62 |
| 2002 | 303.7 | 61 |
| 2001 | 255.2 | 63 |
| 2000 | 174.5 | 71 |
| 1999 | 189.5 | 69 |
| 1998 | 301.1 | 57 |
| 1997 | 287.1 | 59 |
| 1996 | 251.4 | 62 |
| 1995 | 252.5 | 56 |
| 1994 | 234.4 | 57 |
| 1993 | 195.3 | 59 |
| 1992 | 174.7 | 59 |
| 1991 | 166.2 | 59 |
| 1990 | 151 | 62 |
| 1989 | 145.2 | 57 |
| 1988 | 136.6 | 56 |
| 1987 | 149.2 | 56 |
| 1986 | 156 | 55 |