| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 1361 | 37 |
| 2015 | 1379 | 42 |
| 2014 | 1676 | 37 |
| 2013 | 1699 | 37 |
| 2012 | 1740 | 36 |
| 2011 | 2050 | 31 |
| 2010 | 2144 | 28 |
| 2009 | 2353 | 23 |
| 2008 | 2477 | 23 |
| 2007 | 2140 | 23 |
| 2006 | 1788 | 22 |
| 2005 | 1677 | 22 |
| 2004 | 1578 | 21 |
| 2003 | 1296 | 23 |
| 2002 | 996 | 25 |
| 2001 | 878 | 26 |
| 2000 | 848 | 26 |
| 1999 | 923 | 24 |
| 1998 | 959 | 23 |
| 1997 | 945 | 23 |
| 1996 | 949 | 22 |
| 1995 | 876 | 22 |