| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 216 | 65 |
| 2015 | 227 | 74 |
| 2014 | 250 | 75 |
| 2013 | 242 | 77 |
| 2012 | 230 | 77 |
| 2011 | 213 | 78 |
| 2010 | 182 | 77 |
| 2009 | 165 | 77 |
| 2008 | 192 | 77 |
| 2007 | 157 | 77 |
| 2006 | 132 | 75 |
| 2005 | 119 | 76 |
| 2004 | 94 | 79 |
| 2003 | 70 | 80 |
| 2002 | 64 | 79 |
| 2001 | 60 | 78 |
| 2000 | 58 | 71 |
| 1999 | 50 | 77 |
| 1998 | 51 | 78 |
| 1997 | 52 | 77 |
| 1996 | 54 | 74 |
| 1995 | 49 | 76 |
| 1994 | 44 | 74 |
| 1993 | 45 | 70 |
| 1992 | 43 | 69 |
| 1991 | 35 | 74 |
| 1990 | 37 | 67 |
| 1989 | 31 | 61 |
| 1988 | 41 | 53 |
| 1987 | 39 | 53 |
| 1986 | 34 | 53 |