| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 682 | 42 |
| 2015 | 722 | 46 |
| 2014 | 837 | 44 |
| 2013 | 912 | 43 |
| 2012 | 912 | 42 |
| 2011 | 869 | 46 |
| 2010 | 684 | 47 |
| 2009 | 505 | 51 |
| 2008 | 707 | 46 |
| 2007 | 544 | 49 |
| 2006 | 454 | 48 |
| 2005 | 387 | 47 |
| 2004 | 297 | 49 |
| 2003 | 232 | 50 |
| 2002 | 213 | 47 |
| 2001 | 218 | 46 |
| 2000 | 224 | 44 |
| 1999 | 200 | 44 |
| 1998 | 235 | 42 |
| 1997 | 242 | 41 |
| 1996 | 219 | 41 |
| 1995 | 193 | 43 |
| 1994 | 147 | 45 |
| 1993 | 137 | 44 |
| 1992 | 125 | 46 |
| 1991 | 101 | 48 |
| 1990 | 97 | 51 |
| 1989 | 87 | 49 |
| 1988 | 68 | 49 |
| 1987 | 58 | 50 |
| 1986 | 47 | 50 |