| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 211.44 | 101 |
| 2015 | 213.14 | 104 |
| 2014 | 200.03 | 108 |
| 2013 | 192.71 | 110 |
| 2012 | 188.52 | 111 |
| 2011 | 189.14 | 110 |
| 2010 | 160.03 | 111 |
| 2009 | 128.55 | 113 |
| 2008 | 125.45 | 121 |
| 2007 | 103.26 | 122 |
| 2006 | 90.44 | 121 |
| 2005 | 81.3 | 120 |
| 2004 | 72.74 | 118 |
| 2003 | 63.3 | 117 |
| 2002 | 60.51 | 114 |
| 2001 | 60.07 | 110 |
| 2000 | 54.94 | 114 |
| 1999 | 50.34 | 113 |
| 1998 | 48.56 | 113 |
| 1997 | 49.19 | 113 |
| 1996 | 45.22 | 113 |
| 1995 | 44.01 | 112 |
| 1994 | 40.67 | 104 |
| 1993 | 36.6 | 108 |
| 1992 | 34.01 | 110 |
| 1991 | 39.21 | 105 |
| 1990 | 36.28 | 106 |
| 1989 | 35.25 | 98 |
| 1988 | 34.87 | 96 |
| 1987 | 29.57 | 96 |
| 1986 | 28.51 | 94 |