| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 472 | 47 |
| 2015 | 438 | 51 |
| 2014 | 474 | 53 |
| 2013 | 446 | 56 |
| 2012 | 441 | 57 |
| 2011 | 440 | 56 |
| 2010 | 378 | 54 |
| 2009 | 317 | 55 |
| 2008 | 423 | 52 |
| 2007 | 326 | 53 |
| 2006 | 298 | 49 |
| 2005 | 254 | 49 |
| 2004 | 179 | 52 |
| 2003 | 130 | 54 |
| 2002 | 112 | 54 |
| 2001 | 102 | 56 |
| 2000 | 109 | 55 |
| 1999 | 102 | 53 |
| 1998 | 93 | 55 |
| 1997 | 117 | 50 |
| 1996 | 122 | 48 |
| 1995 | 115 | 49 |
| 1994 | 89 | 50 |
| 1993 | 95 | 46 |
| 1992 | 94 | 44 |
| 1991 | 85 | 42 |
| 1990 | 74 | 46 |
| 1989 | 71 | 49 |
| 1988 | 66 | 48 |
| 1987 | 58 | 48 |
| 1986 | 54 | 49 |