| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 4695.09 | 24 |
| 2015 | 4773.37 | 25 |
| 2014 | 5451.52 | 23 |
| 2013 | 5242.15 | 23 |
| 2012 | 5003.44 | 25 |
| 2011 | 5288.2 | 24 |
| 2010 | 4793.21 | 23 |
| 2009 | 4397.96 | 21 |
| 2008 | 5338.16 | 19 |
| 2007 | 4292.5 | 22 |
| 2006 | 3448.26 | 25 |
| 2005 | 3061.35 | 25 |
| 2004 | 2551.02 | 26 |
| 2003 | 2175.19 | 26 |
| 2002 | 1986.81 | 23 |
| 2001 | 1905.21 | 24 |
| 2000 | 1718.86 | 25 |
| 1999 | 1697.18 | 25 |
| 1998 | 1743.88 | 25 |
| 1997 | 1591.18 | 29 |
| 1996 | 1599.43 | 28 |
| 1995 | 1421.37 | 31 |
| 1994 | 1108.03 | 32 |
| 1993 | 960.46 | 32 |
| 1992 | 943.37 | 34 |
| 1991 | 855.01 | 34 |
| 1990 | 659.78 | 37 |