| 时间 |
值 （亿美元） |
世界排名 |
| 2016 |
39 |
125 |
| 2015 |
41 |
127 |
| 2014 |
57 |
123 |
| 2013 |
61 |
123 |
| 2012 |
54 |
125 |
| 2011 |
43 |
133 |
| 2010 |
32 |
135 |
| 2009 |
30 |
131 |
| 2008 |
41 |
125 |
| 2007 |
28 |
133 |
| 2006 |
19 |
135 |
| 2005 |
11 |
149 |
| 2004 |
9 |
151 |
| 2003 |
7 |
153 |
| 2002 |
6 |
152 |
| 2001 |
5 |
159 |
| 2000 |
6 |
151 |
| 1999 |
6 |
145 |
| 1998 |
8 |
134 |
| 1997 |
7 |
140 |
| 1996 |
8 |
134 |
| 1995 |
5 |
148 |
| 1994 |
3 |
157 |