| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 2470.28 | 42 |
| 2015 | 2425.18 | 43 |
| 2014 | 2609.9 | 42 |
| 2013 | 2783.84 | 40 |
| 2012 | 2671.22 | 39 |
| 2011 | 2522.52 | 41 |
| 2010 | 2185.38 | 45 |
| 2009 | 1723.89 | 45 |
| 2008 | 1796.38 | 47 |
| 2007 | 1736.06 | 44 |
| 2006 | 1547.88 | 42 |
| 2005 | 1229.65 | 44 |
| 2004 | 992.1 | 46 |
| 2003 | 756.43 | 50 |
| 2002 | 697.37 | 48 |
| 2001 | 709.8 | 46 |
| 2000 | 778.61 | 45 |
| 1999 | 751.74 | 45 |
| 1998 | 815.77 | 42 |
| 1997 | 849.52 | 41 |
| 1996 | 780.4 | 41 |
| 1995 | 734.47 | 42 |
| 1994 | 570.08 | 43 |
| 1993 | 492.98 | 47 |
| 1992 | 459.64 | 46 |
| 1991 | 378.35 | 47 |
| 1990 | 331.14 | 52 |
| 1989 | 298.86 | 50 |
| 1988 | 260.4 | 51 |
| 1987 | 222.55 | 55 |
| 1986 | 188.91 | 53 |