| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 2774 | 34 |
| 2015 | 2736.1 | 39 |
| 2014 | 3067.1 | 35 |
| 2013 | 2956.8 | 36 |
| 2012 | 2806.2 | 36 |
| 2011 | 2515.5 | 39 |
| 2010 | 2144.3 | 41 |
| 2009 | 1612.5 | 46 |
| 2008 | 1792.7 | 44 |
| 2007 | 1550.9 | 44 |
| 2006 | 1272.3 | 44 |
| 2005 | 1120.4 | 45 |
| 2004 | 993.4 | 42 |
| 2003 | 885 | 41 |
| 2002 | 834.4 | 40 |
| 2001 | 766 | 42 |
| 2000 | 757.7 | 43 |
| 1999 | 593.2 | 45 |
| 1998 | 562.9 | 46 |
| 1997 | 990.9 | 37 |
| 1996 | 994.6 | 37 |
| 1995 | 922 | 36 |
| 1994 | 756.7 | 36 |
| 1993 | 669.6 | 35 |
| 1992 | 583.6 | 37 |
| 1991 | 509.4 | 36 |
| 1990 | 431.2 | 44 |
| 1989 | 364.9 | 45 |
| 1988 | 316.7 | 43 |
| 1987 | 277.2 | 46 |
| 1986 | 260.5 | 45 |