| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 120 | 73 |
| 2015 | 142 | 71 |
| 2014 | 201 | 71 |
| 2013 | 219 | 71 |
| 2012 | 198 | 71 |
| 2011 | 197 | 71 |
| 2010 | 150 | 73 |
| 2009 | 119 | 73 |
| 2008 | 173 | 73 |
| 2007 | 136 | 72 |
| 2006 | 122 | 72 |
| 2005 | 102 | 70 |
| 2004 | 76 | 73 |
| 2003 | 66 | 71 |
| 2002 | 58 | 69 |
| 2001 | 56 | 68 |
| 2000 | 62 | 67 |
| 1999 | 44 | 73 |
| 1998 | 33 | 76 |
| 1997 | 44 | 72 |
| 1996 | 47 | 66 |
| 1995 | 41 | 66 |
| 1994 | 36 | 64 |
| 1993 | 37 | 59 |
| 1992 | 35 | 62 |
| 1991 | 35 | 55 |
| 1990 | 38 | 59 |
| 1989 | 28 | 61 |
| 1988 | 24 | 61 |
| 1987 | 24 | 59 |
| 1986 | 22 | 59 |