| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 4512.6 | 21 |
| 2015 | 4625.7 | 24 |
| 2014 | 5372.9 | 22 |
| 2013 | 5140 | 24 |
| 2012 | 5025.5 | 24 |
| 2011 | 5391.7 | 20 |
| 2010 | 4889 | 20 |
| 2009 | 4435.7 | 21 |
| 2008 | 5607.2 | 18 |
| 2007 | 4444.1 | 20 |
| 2006 | 3519.4 | 21 |
| 2005 | 3093.7 | 21 |
| 2004 | 2619.5 | 22 |
| 2003 | 2232.9 | 23 |
| 2002 | 2054.5 | 21 |
| 2001 | 1974.1 | 21 |
| 2000 | 1827.7 | 23 |
| 1999 | 1795.1 | 22 |
| 1998 | 1825.8 | 23 |
| 1997 | 1650.9 | 26 |
| 1996 | 1620 | 27 |
| 1995 | 1389.5 | 30 |
| 1994 | 1085.3 | 31 |
| 1993 | 950.9 | 32 |
| 1992 | 929.2 | 33 |
| 1991 | 868.8 | 32 |
| 1990 | 616.4 | 37 |