| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 151 | 79 |
| 2015 | 163 | 81 |
| 2014 | 175 | 82 |
| 2013 | 181 | 78 |
| 2012 | 176 | 81 |
| 2011 | 162 | 82 |
| 2010 | 136 | 80 |
| 2009 | 114 | 80 |
| 2008 | 154 | 81 |
| 2007 | 130 | 80 |
| 2006 | 115 | 75 |
| 2005 | 98 | 75 |
| 2004 | 83 | 74 |
| 2003 | 77 | 70 |
| 2002 | 72 | 69 |
| 2001 | 66 | 68 |
| 2000 | 64 | 68 |
| 1999 | 63 | 66 |
| 1998 | 62 | 65 |
| 1997 | 49 | 71 |
| 1996 | 43 | 72 |
| 1995 | 40 | 71 |
| 1994 | 38 | 69 |
| 1993 | 35 | 69 |
| 1992 | 24 | 72 |
| 1991 | 19 | 75 |
| 1990 | 20 | 71 |
| 1989 | 17 | 74 |
| 1988 | 14 | 77 |
| 1987 | 14 | 76 |
| 1986 | 11 | 79 |