| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 290 | 28 |
| 2015 | 278 | 34 |
| 2014 | 309 | 33 |
| 2013 | 291 | 34 |
| 2012 | 254 | 34 |
| 2011 | 266 | 34 |
| 2010 | 225 | 35 |
| 2009 | 224 | 33 |
| 2008 | 258 | 32 |
| 2007 | 230 | 31 |
| 2006 | 182 | 31 |
| 2005 | 149 | 32 |
| 2004 | 145 | 29 |
| 2003 | 121 | 29 |
| 2002 | 102 | 29 |
| 2001 | 93 | 30 |
| 2000 | 92 | 31 |
| 1999 | 92 | 30 |
| 1998 | 90 | 27 |
| 1997 | 78 | 30 |
| 1996 | 81 | 29 |
| 1995 | 83 | 25 |
| 1994 | 69 | 24 |
| 1993 | 69 | 22 |
| 1992 | 54 | 23 |
| 1991 | 52 | 22 |
| 1990 | 51 | 21 |
| 1989 | 37 | 24 |
| 1988 | 34 | 24 |
| 1987 | 31 | 23 |
| 1986 | 24 | 24 |