| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 705.29 | 66 |
| 2015 | 637.68 | 72 |
| 2014 | 614.45 | 74 |
| 2013 | 550.97 | 79 |
| 2012 | 504.13 | 79 |
| 2011 | 419.53 | 85 |
| 2010 | 400 | 82 |
| 2009 | 370.22 | 82 |
| 2008 | 358.95 | 82 |
| 2007 | 319.58 | 83 |
| 2006 | 258.26 | 82 |
| 2005 | 187.38 | 84 |
| 2004 | 160.95 | 86 |
| 2003 | 149.05 | 84 |
| 2002 | 131.48 | 84 |
| 2001 | 129.86 | 81 |
| 2000 | 127.05 | 83 |
| 1999 | 128.96 | 80 |
| 1998 | 140.94 | 79 |
| 1997 | 131.16 | 79 |
| 1996 | 120.46 | 80 |
| 1995 | 90.46 | 87 |
| 1994 | 71.48 | 86 |
| 1993 | 57.52 | 91 |
| 1992 | 82.09 | 79 |
| 1991 | 81.51 | 83 |
| 1990 | 85.72 | 80 |
| 1989 | 82.83 | 73 |
| 1988 | 83.55 | 69 |
| 1987 | 79.71 | 67 |
| 1986 | 72.39 | 66 |