| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 2025 | 20 |
| 2015 | 1992 | 22 |
| 2014 | 2202 | 25 |
| 2013 | 2050 | 25 |
| 2012 | 1854 | 26 |
| 2011 | 1887 | 26 |
| 2010 | 1597 | 25 |
| 2009 | 1365 | 26 |
| 2008 | 1705 | 28 |
| 2007 | 1401 | 27 |
| 2006 | 1108 | 28 |
| 2005 | 894 | 29 |
| 2004 | 750 | 30 |
| 2003 | 538 | 31 |
| 2002 | 411 | 32 |
| 2001 | 360 | 32 |
| 2000 | 317 | 34 |
| 1999 | 274 | 33 |
| 1998 | 282 | 33 |
| 1997 | 258 | 35 |
| 1996 | 244 | 34 |
| 1995 | 229 | 33 |
| 1994 | 172 | 36 |
| 1993 | 141 | 38 |
| 1992 | 145 | 35 |
| 1991 | 138 | 35 |
| 1990 | 143 | 35 |
| 1989 | 135 | 34 |
| 1988 | 140 | 31 |
| 1987 | 122 | 31 |
| 1986 | 121 | 30 |