| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 13 | 157 |
| 2015 | 14 | 162 |
| 2014 | 17 | 162 |
| 2013 | 17 | 162 |
| 2012 | 18 | 159 |
| 2011 | 20 | 157 |
| 2010 | 20 | 150 |
| 2009 | 18 | 150 |
| 2008 | 16 | 154 |
| 2007 | 18 | 145 |
| 2006 | 19 | 136 |
| 2005 | 19 | 129 |
| 2004 | 19 | 125 |
| 2003 | 15 | 127 |
| 2002 | 10 | 137 |
| 2001 | 11 | 125 |
| 2000 | 10 | 129 |
| 1999 | 11 | 126 |
| 1998 | 11 | 123 |
| 1997 | 11 | 124 |
| 1996 | 11 | 125 |
| 1995 | 10 | 121 |
| 1994 | 9 | 117 |
| 1993 | 9 | 107 |
| 1992 | 9 | 109 |
| 1991 | 7 | 110 |
| 1990 | 7 | 113 |
| 1989 | 6 | 114 |
| 1988 | 5 | 118 |
| 1987 | 4 | 118 |
| 1986 | 4 | 124 |