| 时间 |
值 （亿美元） |
世界排名 |
| 2015 |
87 |
109 |
| 2014 |
105 |
106 |
| 2013 |
98 |
110 |
| 2012 |
96 |
109 |
| 2011 |
104 |
104 |
| 2010 |
88 |
105 |
| 2009 |
86 |
97 |
| 2008 |
113 |
95 |
| 2007 |
89 |
99 |
| 2006 |
81 |
97 |
| 2005 |
80 |
88 |
| 2004 |
78 |
88 |
| 2003 |
70 |
81 |
| 2002 |
47 |
89 |
| 2001 |
44 |
88 |
| 2000 |
42 |
86 |
| 1999 |
44 |
83 |
| 1998 |
40 |
89 |
| 1997 |
27 |
102 |
| 1996 |
23 |
103 |
| 1995 |
13 |
121 |
| 1994 |
11 |
119 |