| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 767.3 | 59 |
| 2015 | 708.3 | 68 |
| 2014 | 704.8 | 67 |
| 2013 | 624.2 | 70 |
| 2012 | 571.2 | 71 |
| 2011 | 491.7 | 77 |
| 2010 | 451.6 | 79 |
| 2009 | 410.2 | 78 |
| 2008 | 402.9 | 79 |
| 2007 | 351.7 | 80 |
| 2006 | 282.2 | 79 |
| 2005 | 201.4 | 83 |
| 2004 | 171 | 84 |
| 2003 | 157.9 | 81 |
| 2002 | 138.5 | 81 |
| 2001 | 143 | 78 |
| 2000 | 139.9 | 77 |
| 1999 | 137.4 | 79 |
| 1998 | 153 | 74 |
| 1997 | 142.5 | 76 |
| 1996 | 128.8 | 77 |
| 1995 | 96.4 | 84 |
| 1994 | 69.5 | 85 |
| 1993 | 54.7 | 92 |
| 1992 | 82.4 | 79 |
| 1991 | 82.7 | 79 |
| 1990 | 90.6 | 73 |
| 1989 | 88.7 | 65 |
| 1988 | 87.9 | 62 |
| 1987 | 83.8 | 62 |
| 1986 | 75.3 | 63 |