| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 350 | 51 |
| 2015 | 324 | 59 |
| 2014 | 304 | 63 |
| 2013 | 291 | 66 |
| 2012 | 251 | 67 |
| 2011 | 244 | 67 |
| 2010 | 192 | 69 |
| 2009 | 151 | 69 |
| 2008 | 154 | 75 |
| 2007 | 125 | 74 |
| 2006 | 118 | 73 |
| 2005 | 93 | 73 |
| 2004 | 83 | 70 |
| 2003 | 70 | 70 |
| 2002 | 61 | 68 |
| 2001 | 61 | 67 |
| 2000 | 64 | 66 |
| 1999 | 55 | 67 |
| 1998 | 51 | 65 |
| 1997 | 48 | 67 |
| 1996 | 42 | 70 |
| 1995 | 35 | 73 |
| 1994 | 29 | 72 |
| 1993 | 25 | 71 |
| 1992 | 21 | 71 |
| 1991 | 17 | 72 |
| 1990 | 17 | 78 |
| 1989 | 13 | 82 |
| 1988 | 13 | 77 |
| 1987 | 11 | 79 |
| 1986 | 9 | 81 |