| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 242.04 | 98 |
| 2015 | 284.16 | 97 |
| 2014 | 320.51 | 97 |
| 2013 | 295.68 | 100 |
| 2012 | 264.72 | 100 |
| 2011 | 265.87 | 99 |
| 2010 | 236.22 | 99 |
| 2009 | 233.81 | 97 |
| 2008 | 233.22 | 99 |
| 2007 | 204.32 | 98 |
| 2006 | 179.53 | 96 |
| 2005 | 165.88 | 93 |
| 2004 | 157.75 | 88 |
| 2003 | 136.22 | 88 |
| 2002 | 108.8 | 89 |
| 2001 | 96.33 | 91 |
| 2000 | 92.87 | 91 |
| 1999 | 104.86 | 89 |
| 1998 | 96.3 | 89 |
| 1997 | 98.41 | 89 |
| 1996 | 97.32 | 87 |
| 1995 | 87.33 | 88 |
| 1994 | 92.2 | 80 |
| 1993 | 135.32 | 69 |
| 1992 | 113.96 | 70 |
| 1991 | 124.34 | 68 |
| 1990 | 111.52 | 73 |
| 1989 | 111.4 | 62 |
| 1988 | 124.93 | 61 |
| 1987 | 123.02 | 61 |
| 1986 | 106.21 | 60 |