| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 204 | 65 |
| 2015 | 221 | 66 |
| 2014 | 247 | 68 |
| 2013 | 251 | 68 |
| 2012 | 246 | 68 |
| 2011 | 254 | 66 |
| 2010 | 214 | 65 |
| 2009 | 175 | 66 |
| 2008 | 203 | 69 |
| 2007 | 178 | 67 |
| 2006 | 169 | 64 |
| 2005 | 161 | 63 |
| 2004 | 134 | 62 |
| 2003 | 119 | 59 |
| 2002 | 99 | 59 |
| 2001 | 92 | 60 |
| 2000 | 90 | 58 |
| 1999 | 84 | 56 |
| 1998 | 85 | 54 |
| 1997 | 88 | 54 |
| 1996 | 94 | 52 |
| 1995 | 80 | 54 |
| 1994 | 74 | 52 |
| 1993 | 67 | 50 |
| 1992 | 74 | 48 |
| 1991 | 66 | 48 |
| 1990 | 56 | 50 |
| 1989 | 47 | 54 |
| 1988 | 45 | 54 |
| 1987 | 42 | 54 |
| 1986 | 34 | 53 |