| 时间 |
值 （亿美元） |
世界排名 |
| 2016 |
50 |
56 |
| 2015 |
48 |
61 |
| 2014 |
48 |
69 |
| 2013 |
48 |
69 |
| 2012 |
47 |
70 |
| 2011 |
44 |
72 |
| 2010 |
38 |
71 |
| 2009 |
35 |
70 |
| 2008 |
34 |
73 |
| 2007 |
26 |
79 |
| 2006 |
22 |
77 |
| 2005 |
19 |
79 |
| 2004 |
16 |
82 |
| 2003 |
15 |
80 |
| 2002 |
13 |
82 |
| 2001 |
14 |
77 |
| 2000 |
13 |
78 |
| 1999 |
14 |
77 |
| 1998 |
14 |
81 |
| 1997 |
15 |
79 |
| 1996 |
16 |
75 |
| 1995 |
16 |
74 |
| 1994 |
13 |
69 |
| 1993 |
11 |
68 |