| 时间 |
值 （亿美元） |
世界排名 |
| 2016 |
72 |
103 |
| 2015 |
73 |
108 |
| 2014 |
86 |
107 |
| 2013 |
80 |
109 |
| 2012 |
80 |
108 |
| 2011 |
71 |
108 |
| 2010 |
53 |
110 |
| 2009 |
45 |
113 |
| 2008 |
63 |
106 |
| 2007 |
52 |
107 |
| 2006 |
37 |
109 |
| 2005 |
25 |
119 |
| 2004 |
18 |
127 |
| 2003 |
11 |
140 |
| 2002 |
8 |
141 |
| 2001 |
8 |
141 |
| 2000 |
7 |
141 |
| 1999 |
6 |
147 |
| 1998 |
9 |
133 |
| 1997 |
9 |
128 |
| 1996 |
7 |
140 |
| 1995 |
4 |
157 |
| 1994 |
3 |
155 |