| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 1707 | 28 |
| 2015 | 1785 | 30 |
| 2014 | 2175 | 30 |
| 2013 | 2255 | 27 |
| 2012 | 2294 | 24 |
| 2011 | 2130 | 27 |
| 2010 | 1692 | 30 |
| 2009 | 1152 | 31 |
| 2008 | 1467 | 31 |
| 2007 | 1098 | 34 |
| 2006 | 934 | 33 |
| 2005 | 855 | 30 |
| 2004 | 707 | 31 |
| 2003 | 543 | 33 |
| 2002 | 516 | 30 |
| 2001 | 494 | 28 |
| 2000 | 503 | 29 |
| 1999 | 384 | 35 |
| 1998 | 412 | 31 |
| 1997 | 607 | 24 |
| 1996 | 601 | 24 |
| 1995 | 559 | 25 |
| 1994 | 449 | 25 |
| 1993 | 376 | 26 |
| 1992 | 346 | 26 |
| 1991 | 315 | 27 |
| 1990 | 276 | 30 |
| 1989 | 218 | 32 |
| 1988 | 185 | 32 |
| 1987 | 170 | 28 |
| 1986 | 164 | 28 |