| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 978.02 | 58 |
| 2015 | 1001.77 | 61 |
| 2014 | 1022.92 | 62 |
| 2013 | 951.3 | 65 |
| 2012 | 879.25 | 65 |
| 2011 | 792.77 | 65 |
| 2010 | 695.55 | 66 |
| 2009 | 625.2 | 67 |
| 2008 | 617.63 | 67 |
| 2007 | 510.08 | 68 |
| 2006 | 468.02 | 67 |
| 2005 | 415.07 | 67 |
| 2004 | 365.92 | 65 |
| 2003 | 324.33 | 63 |
| 2002 | 285.49 | 62 |
| 2001 | 244.68 | 64 |
| 2000 | 183.28 | 73 |
| 1999 | 196.45 | 69 |
| 1998 | 279.82 | 59 |
| 1997 | 281.62 | 60 |
| 1996 | 252.26 | 61 |
| 1995 | 244.33 | 62 |
| 1994 | 227.09 | 60 |
| 1993 | 189.39 | 61 |
| 1992 | 180.94 | 61 |
| 1991 | 169.89 | 61 |
| 1990 | 152.39 | 64 |
| 1989 | 138.91 | 60 |
| 1988 | 130.52 | 60 |
| 1987 | 139.45 | 60 |
| 1986 | 153.14 | 57 |