| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 381.3 | 78 |
| 2015 | 379.1 | 90 |
| 2014 | 437.7 | 88 |
| 2013 | 416.9 | 91 |
| 2012 | 390.9 | 91 |
| 2011 | 404.9 | 86 |
| 2010 | 357.1 | 86 |
| 2009 | 348.5 | 82 |
| 2008 | 387.3 | 81 |
| 2007 | 339.6 | 82 |
| 2006 | 288.9 | 78 |
| 2005 | 277.9 | 77 |
| 2004 | 260.6 | 70 |
| 2003 | 225.5 | 70 |
| 2002 | 176.9 | 72 |
| 2001 | 162.7 | 73 |
| 2000 | 159.4 | 73 |
| 1999 | 172.5 | 70 |
| 1998 | 162.8 | 72 |
| 1997 | 155.7 | 72 |
| 1996 | 168.5 | 70 |
| 1995 | 172 | 69 |
| 1994 | 147.7 | 68 |
| 1993 | 136.4 | 68 |
| 1992 | 135.5 | 65 |
| 1991 | 126.5 | 64 |
| 1990 | 115.4 | 67 |
| 1989 | 89.6 | 63 |
| 1988 | 87.4 | 63 |
| 1987 | 78.6 | 64 |
| 1986 | 60.1 | 71 |