| 时间 |
值 （亿美元） |
世界排名 |
| 2016 |
159 |
77 |
| 2015 |
162 |
88 |
| 2014 |
193 |
83 |
| 2013 |
192 |
84 |
| 2012 |
185 |
83 |
| 2011 |
177 |
83 |
| 2010 |
131 |
86 |
| 2009 |
116 |
84 |
| 2008 |
187 |
78 |
| 2007 |
178 |
73 |
| 2006 |
130 |
77 |
| 2005 |
98 |
85 |
| 2004 |
79 |
87 |
| 2003 |
57 |
89 |
| 2002 |
45 |
90 |
| 2001 |
40 |
92 |
| 2000 |
36 |
93 |
| 1999 |
34 |
92 |
| 1998 |
37 |
92 |
| 1997 |
32 |
97 |
| 1996 |
30 |
96 |
| 1995 |
23 |
97 |