| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 1524.69 | 54 |
| 2015 | 1646.41 | 56 |
| 2014 | 2062.25 | 51 |
| 2013 | 1987.28 | 53 |
| 2012 | 1868.34 | 53 |
| 2011 | 1677.75 | 55 |
| 2010 | 1251.22 | 57 |
| 2009 | 977.98 | 60 |
| 2008 | 1152.7 | 58 |
| 2007 | 797.12 | 60 |
| 2006 | 608.82 | 63 |
| 2005 | 445.3 | 65 |
| 2004 | 317.34 | 69 |
| 2003 | 235.34 | 69 |
| 2002 | 193.64 | 73 |
| 2001 | 175.38 | 75 |
| 2000 | 177.6 | 75 |
| 1999 | 123.93 | 82 |
| 1998 | 102.55 | 88 |
| 1997 | 112.98 | 83 |
| 1996 | 90.59 | 88 |
| 1995 | 81.38 | 89 |
| 1994 | 73.74 | 85 |
| 1993 | 71.57 | 85 |
| 1992 | 76.46 | 82 |
| 1991 | 68.84 | 88 |
| 1990 | 73.6 | 85 |
| 1989 | 64.88 | 77 |
| 1988 | 60.38 | 79 |
| 1987 | 54.46 | 81 |
| 1986 | 50.53 | 79 |