| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 209.89 | 102 |
| 2015 | 235.59 | 102 |
| 2014 | 261.76 | 103 |
| 2013 | 264.36 | 103 |
| 2012 | 256.94 | 101 |
| 2011 | 254.33 | 100 |
| 2010 | 221.58 | 101 |
| 2009 | 191.75 | 104 |
| 2008 | 278.7 | 90 |
| 2007 | 216.42 | 94 |
| 2006 | 183.69 | 94 |
| 2005 | 159.82 | 95 |
| 2004 | 132.8 | 94 |
| 2003 | 113.05 | 93 |
| 2002 | 90.08 | 98 |
| 2001 | 88.25 | 96 |
| 2000 | 81.54 | 101 |
| 1999 | 68.09 | 101 |
| 1998 | 60.44 | 106 |
| 1997 | 57.38 | 106 |
| 1996 | 57.6 | 106 |
| 1995 | 53.29 | 103 |
| 1994 | 49.47 | 97 |
| 1993 | 46.69 | 101 |
| 1992 | 54.4 | 96 |
| 1991 | 53.08 | 97 |
| 1990 | 50.68 | 96 |
| 1989 | 43.23 | 90 |
| 1988 | 44.97 | 86 |
| 1987 | 47.98 | 84 |
| 1986 | 47.94 | 80 |