| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 429 | 53 |
| 2015 | 449 | 60 |
| 2014 | 487 | 60 |
| 2013 | 503 | 60 |
| 2012 | 485 | 61 |
| 2011 | 438 | 62 |
| 2010 | 352 | 61 |
| 2009 | 262 | 67 |
| 2008 | 346 | 65 |
| 2007 | 247 | 68 |
| 2006 | 188 | 67 |
| 2005 | 156 | 66 |
| 2004 | 127 | 66 |
| 2003 | 109 | 64 |
| 2002 | 98 | 64 |
| 2001 | 96 | 65 |
| 2000 | 97 | 59 |
| 1999 | 89 | 60 |
| 1998 | 107 | 59 |
| 1997 | 110 | 56 |
| 1996 | 101 | 58 |
| 1995 | 98 | 57 |
| 1994 | 72 | 62 |
| 1993 | 57 | 62 |
| 1992 | 56 | 63 |
| 1991 | 50 | 63 |
| 1990 | 36 | 68 |
| 1989 | 25 | 67 |
| 1988 | 28 | 63 |
| 1987 | 30 | 60 |
| 1986 | 28 | 60 |