| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 205.4 | 47 |
| 2015 | 202.8 | 56 |
| 2014 | 199 | 57 |
| 2013 | 195.4 | 57 |
| 2012 | 187.5 | 57 |
| 2011 | 172.9 | 57 |
| 2010 | 167.3 | 58 |
| 2009 | 165.8 | 55 |
| 2008 | 147.8 | 56 |
| 2007 | 141.8 | 56 |
| 2006 | 135.1 | 55 |
| 2005 | 130.7 | 53 |
| 2004 | 125.7 | 53 |
| 2003 | 120 | 53 |
| 2002 | 118.3 | 53 |
| 2001 | 117.1 | 53 |
| 2000 | 111.7 | 52 |
| 1999 | 109.3 | 51 |
| 1998 | 102.3 | 51 |
| 1997 | 104.6 | 51 |
| 1996 | 104.3 | 50 |
| 1995 | 110.4 | 48 |
| 1994 | 109.4 | 49 |
| 1993 | 107 | 50 |
| 1992 | 104.8 | 50 |
| 1991 | 109.6 | 48 |
| 1990 | 111.3 | 46 |
| 1989 | 122.4 | 36 |
| 1988 | 131.4 | 35 |
| 1987 | 124.6 | 35 |
| 1986 | 123.5 | 35 |