| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 893.3 | 55 |
| 2015 | 1052.4 | 58 |
| 2014 | 1194.4 | 59 |
| 2013 | 1045.4 | 60 |
| 2012 | 893.5 | 62 |
| 2011 | 799.7 | 63 |
| 2010 | 664.4 | 64 |
| 2009 | 758.7 | 62 |
| 2008 | 630.6 | 67 |
| 2007 | 420.5 | 73 |
| 2006 | 247.3 | 83 |
| 2005 | 190.9 | 85 |
| 2004 | 164.8 | 86 |
| 2003 | 132.8 | 87 |
| 2002 | 110.4 | 89 |
| 2001 | 89 | 93 |
| 2000 | 66.8 | 102 |
| 1999 | 65.5 | 101 |
| 1998 | 75 | 96 |
| 1997 | 77 | 95 |
| 1996 | 65.2 | 97 |
| 1994 | 36.7 | 112 |
| 1993 | 53.6 | 93 |
| 1992 | 59 | 91 |
| 1991 | 121.2 | 66 |
| 1990 | 100.3 | 70 |
| 1989 | 100.3 | 61 |
| 1988 | 66.8 | 71 |
| 1987 | 66.8 | 70 |
| 1986 | 66.8 | 68 |