| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 294 | 18 |
| 2015 | 300 | 20 |
| 2014 | 322 | 20 |
| 2013 | 306 | 23 |
| 2012 | 296 | 23 |
| 2011 | 285 | 22 |
| 2010 | 246 | 21 |
| 2009 | 220 | 19 |
| 2008 | 231 | 21 |
| 2007 | 187 | 23 |
| 2006 | 151 | 21 |
| 2005 | 131 | 22 |
| 2004 | 122 | 23 |
| 2003 | 107 | 25 |
| 2002 | 107 | 22 |
| 2001 | 101 | 24 |
| 2000 | 113 | 22 |
| 1999 | 126 | 19 |
| 1998 | 107 | 26 |
| 1997 | 155 | 15 |
| 1996 | 171 | 14 |
| 1995 | 160 | 14 |
| 1994 | 141 | 14 |
| 1993 | 117 | 16 |
| 1992 | 116 | 18 |
| 1991 | 95 | 20 |
| 1990 | 97 | 21 |
| 1989 | 97 | 16 |
| 1988 | 87 | 20 |
| 1987 | 80 | 18 |
| 1986 | 72 | 16 |