| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 3038.8 | 30 |
| 2015 | 2884.9 | 37 |
| 2014 | 2600.4 | 40 |
| 2013 | 2468.9 | 42 |
| 2012 | 2423.6 | 43 |
| 2011 | 2242.8 | 44 |
| 2010 | 1877.6 | 45 |
| 2009 | 1803.9 | 42 |
| 2008 | 1885 | 43 |
| 2007 | 1623.8 | 42 |
| 2006 | 1474.4 | 41 |
| 2005 | 1137.4 | 43 |
| 2004 | 969.6 | 43 |
| 2003 | 827.5 | 45 |
| 2002 | 723.7 | 45 |
| 2001 | 730.7 | 44 |
| 2000 | 748.7 | 44 |
| 1999 | 639.9 | 44 |
| 1998 | 628.4 | 44 |
| 1997 | 653.6 | 44 |
| 1996 | 661.8 | 45 |
| 1995 | 622.8 | 44 |
| 1994 | 533.3 | 44 |
| 1993 | 546.4 | 42 |
| 1992 | 501.8 | 40 |
| 1991 | 461.6 | 40 |
| 1990 | 431.4 | 43 |
| 1989 | 433.3 | 41 |
| 1988 | 415.8 | 38 |
| 1987 | 359.4 | 40 |
| 1986 | 353.3 | 37 |