| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 449.1 | 32 |
| 2015 | 444.7 | 36 |
| 2014 | 426.1 | 37 |
| 2013 | 408.6 | 39 |
| 2012 | 386.2 | 39 |
| 2011 | 366.3 | 39 |
| 2010 | 320.8 | 40 |
| 2009 | 312.2 | 39 |
| 2008 | 297.5 | 39 |
| 2007 | 278.4 | 39 |
| 2006 | 259.4 | 41 |
| 2005 | 245.9 | 43 |
| 2004 | 230.9 | 43 |
| 2003 | 214.5 | 44 |
| 2002 | 197.5 | 44 |
| 2001 | 176.5 | 47 |
| 2000 | 152.5 | 47 |
| 1999 | 150.1 | 46 |
| 1998 | 128.2 | 47 |
| 1997 | 140.7 | 47 |
| 1996 | 133.1 | 47 |
| 1995 | 132.2 | 47 |
| 1994 | 124.6 | 46 |
| 1993 | 115.5 | 46 |
| 1992 | 106.6 | 48 |
| 1991 | 101.5 | 49 |
| 1990 | 90.9 | 49 |
| 1989 | 85.8 | 42 |
| 1988 | 82.7 | 42 |
| 1987 | 77.1 | 42 |
| 1986 | 76 | 41 |