| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 3322.5 | 27 |
| 2015 | 3100.4 | 34 |
| 2014 | 2949.6 | 37 |
| 2013 | 2832.8 | 38 |
| 2012 | 2582.5 | 40 |
| 2011 | 2322.9 | 43 |
| 2010 | 2032.1 | 43 |
| 2009 | 1702.3 | 44 |
| 2008 | 1784.8 | 45 |
| 2007 | 1495.1 | 47 |
| 2006 | 1243.9 | 45 |
| 2005 | 1088.5 | 47 |
| 2004 | 963.9 | 44 |
| 2003 | 902.3 | 40 |
| 2002 | 886.3 | 39 |
| 2001 | 814.9 | 41 |
| 2000 | 826.4 | 41 |
| 1999 | 862.6 | 38 |
| 1998 | 788 | 41 |
| 1997 | 908.6 | 38 |
| 1996 | 901.3 | 38 |
| 1995 | 799.2 | 38 |
| 1994 | 681.3 | 37 |
| 1993 | 589.6 | 38 |
| 1992 | 555.7 | 38 |
| 1991 | 467.8 | 39 |
| 1990 | 468.7 | 41 |
| 1989 | 434.9 | 40 |
| 1988 | 373.3 | 41 |
| 1987 | 330.6 | 42 |
| 1986 | 286.9 | 42 |