| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 2449.5 | 35 |
| 2015 | 2427.9 | 40 |
| 2014 | 2584.3 | 41 |
| 2013 | 2799.8 | 39 |
| 2012 | 2672 | 37 |
| 2011 | 2438.8 | 41 |
| 2010 | 2044.9 | 42 |
| 2009 | 1590.4 | 47 |
| 2008 | 1759.4 | 47 |
| 2007 | 1497.7 | 46 |
| 2006 | 1323.6 | 43 |
| 2005 | 1122.6 | 44 |
| 2004 | 894.2 | 46 |
| 2003 | 718.6 | 46 |
| 2002 | 681.9 | 47 |
| 2001 | 698.1 | 45 |
| 2000 | 765 | 42 |
| 1999 | 735.3 | 41 |
| 1998 | 842.5 | 39 |
| 1997 | 866.6 | 39 |
| 1996 | 791.9 | 40 |
| 1995 | 717.7 | 40 |
| 1994 | 560.3 | 40 |
| 1993 | 502.1 | 44 |
| 1992 | 452 | 44 |
| 1991 | 361.3 | 46 |
| 1990 | 320.4 | 51 |
| 1989 | 285.6 | 48 |
| 1988 | 243.5 | 49 |
| 1987 | 217 | 50 |
| 1986 | 184 | 51 |