| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 96 | 85 |
| 2015 | 94 | 88 |
| 2014 | 112 | 88 |
| 2013 | 115 | 86 |
| 2012 | 114 | 84 |
| 2011 | 104 | 88 |
| 2010 | 94 | 85 |
| 2009 | 88 | 82 |
| 2008 | 95 | 88 |
| 2007 | 93 | 79 |
| 2006 | 82 | 80 |
| 2005 | 70 | 81 |
| 2004 | 63 | 77 |
| 2003 | 61 | 74 |
| 2002 | 53 | 74 |
| 2001 | 50 | 72 |
| 2000 | 59 | 68 |
| 1999 | 66 | 62 |
| 1998 | 55 | 61 |
| 1997 | 43 | 73 |
| 1996 | 37 | 75 |
| 1995 | 35 | 74 |
| 1994 | 29 | 73 |
| 1993 | 26 | 69 |
| 1992 | 18 | 74 |
| 1991 | 16 | 76 |
| 1990 | 14 | 80 |
| 1989 | 14 | 78 |
| 1988 | 12 | 78 |
| 1987 | 12 | 78 |
| 1986 | 11 | 74 |