| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2013 | 1031.35 | 63 |
| 2012 | 1010.81 | 62 |
| 2011 | 1003.52 | 63 |
| 2010 | 983.81 | 61 |
| 2009 | 963.86 | 61 |
| 2008 | 936.39 | 61 |
| 2007 | 895.24 | 57 |
| 2006 | 872.76 | 56 |
| 2005 | 839.15 | 54 |
| 2004 | 803.22 | 51 |
| 2003 | 758.34 | 49 |
| 2002 | 725.46 | 46 |
| 2001 | 696.69 | 47 |
| 2000 | 617.02 | 47 |
| 1999 | 578.41 | 49 |
| 1998 | 540.86 | 50 |
| 1997 | 481.87 | 52 |
| 1996 | 453.41 | 53 |
| 1995 | 426.47 | 52 |
| 1994 | 396.91 | 53 |
| 1993 | 369.22 | 52 |
| 1992 | 346.3 | 51 |
| 1991 | 322.87 | 51 |
| 1990 | 306.04 | 55 |
| 1989 | 282.67 | 52 |
| 1988 | 261.78 | 50 |
| 1987 | 238.78 | 53 |
| 1986 | 219.69 | 48 |