| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 3209.12 | 32 |
| 2015 | 3094.04 | 34 |
| 2014 | 2914.59 | 39 |
| 2013 | 2756.97 | 41 |
| 2012 | 2626.29 | 40 |
| 2011 | 2485.14 | 42 |
| 2010 | 2286.38 | 42 |
| 2009 | 2140.46 | 39 |
| 2008 | 2192.8 | 41 |
| 2007 | 2115.97 | 38 |
| 2006 | 1935.36 | 37 |
| 2005 | 1815.7 | 36 |
| 2004 | 1691 | 35 |
| 2003 | 1613.85 | 33 |
| 2002 | 1663.49 | 28 |
| 2001 | 1694.03 | 27 |
| 2000 | 1716.68 | 26 |
| 1999 | 1657.68 | 26 |
| 1998 | 1688.86 | 26 |
| 1997 | 1773.53 | 25 |
| 1996 | 1597.17 | 29 |
| 1995 | 1446.53 | 29 |
| 1994 | 1358.12 | 27 |
| 1993 | 1203.54 | 30 |
| 1992 | 1042.72 | 33 |
| 1991 | 889.6 | 33 |
| 1990 | 769.28 | 36 |
| 1989 | 687.9 | 34 |
| 1988 | 597.07 | 34 |
| 1987 | 506.23 | 34 |
| 1986 | 410.76 | 35 |