| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 1929.25 | 48 |
| 2015 | 1851.56 | 50 |
| 2014 | 2078.18 | 50 |
| 2013 | 2094.02 | 51 |
| 2012 | 2073.76 | 51 |
| 2011 | 2279.48 | 46 |
| 2010 | 2070.16 | 46 |
| 2009 | 2057.3 | 41 |
| 2008 | 2352.05 | 39 |
| 2007 | 1888.18 | 41 |
| 2006 | 1552.13 | 41 |
| 2005 | 1359.9 | 42 |
| 2004 | 1189.76 | 40 |
| 2003 | 993 | 40 |
| 2002 | 816.97 | 44 |
| 2001 | 673.76 | 48 |
| 2000 | 614.74 | 48 |
| 1999 | 647.19 | 46 |
| 1998 | 663.73 | 46 |
| 1997 | 616.21 | 48 |
| 1996 | 667.75 | 47 |
| 1995 | 595.37 | 48 |
| 1994 | 473.65 | 49 |
| 1993 | 404.52 | 50 |
| 1992 | 344.52 | 52 |
| 1991 | 295.57 | 55 |
| 1990 | 403.16 | 47 |