| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 1866.91 | 50 |
| 2015 | 1775.23 | 53 |
| 2014 | 1994.93 | 54 |
| 2013 | 1915.49 | 54 |
| 2012 | 1716.65 | 57 |
| 2011 | 1853.63 | 52 |
| 2010 | 1679.98 | 49 |
| 2009 | 1674.23 | 49 |
| 2008 | 2081.82 | 43 |
| 2007 | 1715.37 | 45 |
| 2006 | 1235.33 | 47 |
| 2005 | 996.98 | 51 |
| 2004 | 762.16 | 53 |
| 2003 | 598.68 | 54 |
| 2002 | 461.75 | 55 |
| 2001 | 407.17 | 55 |
| 2000 | 374.39 | 58 |
| 1999 | 361.83 | 55 |
| 1998 | 419.76 | 54 |
| 1997 | 358.39 | 56 |
| 1996 | 371.83 | 56 |
| 1995 | 376.62 | 56 |
| 1994 | 300.74 | 56 |
| 1993 | 263.63 | 57 |
| 1992 | 251.22 | 57 |
| 1991 | 289.99 | 56 |
| 1990 | 389.95 | 50 |
| 1989 | 421.05 | 42 |
| 1988 | 408.1 | 40 |
| 1987 | 384.14 | 40 |