| 时间 |
值 （亿美元） |
世界排名 |
| 2015 |
97 |
58 |
| 2014 |
117 |
56 |
| 2013 |
155 |
46 |
| 2012 |
140 |
47 |
| 2011 |
128 |
49 |
| 2010 |
122 |
48 |
| 2009 |
111 |
48 |
| 2008 |
158 |
42 |
| 2007 |
111 |
44 |
| 2006 |
86 |
45 |
| 2005 |
70 |
48 |
| 2004 |
62 |
43 |
| 2003 |
40 |
47 |
| 2002 |
32 |
50 |
| 2001 |
32 |
47 |
| 2000 |
26 |
47 |
| 1999 |
23 |
46 |
| 1998 |
26 |
45 |
| 1997 |
23 |
46 |
| 1996 |
18 |
49 |
| 1995 |
18 |
47 |
| 1994 |
17 |
44 |