| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2015 | 847.8 | 65 |
| 2014 | 767.1 | 66 |
| 2013 | 741.6 | 68 |
| 2012 | 693.7 | 67 |
| 2011 | 667.5 | 66 |
| 2010 | 612.1 | 67 |
| 2009 | 608.4 | 66 |
| 2008 | 631.1 | 66 |
| 2007 | 570.2 | 64 |
| 2006 | 526.2 | 63 |
| 2005 | 415 | 64 |
| 2004 | 379.2 | 63 |
| 2003 | 361.5 | 61 |
| 2002 | 341.5 | 60 |
| 2001 | 326 | 59 |
| 2000 | 314.3 | 57 |
| 1999 | 291.6 | 59 |
| 1998 | 267.7 | 62 |
| 1997 | 261 | 63 |
| 1996 | 255.2 | 60 |
| 1995 | 311.9 | 55 |
| 1994 | 288.2 | 55 |
| 1993 | 229.3 | 58 |
| 1992 | 223.8 | 58 |
| 1991 | 260.5 | 55 |
| 1990 | 316.9 | 53 |
| 1989 | 307 | 47 |
| 1988 | 305 | 44 |
| 1987 | 279.9 | 45 |
| 1986 | 271.5 | 44 |