| 时间 | 值 （亿元） | 世界排名 |
|---|---|---|
| 2016 | 147.9 | 115 |
| 2015 | 107.9 | 130 |
| 2014 | 90.9 | 133 |
| 2013 | 84.9 | 136 |
| 2012 | 70.9 | 137 |
| 2011 | 59.3 | 139 |
| 2010 | 44.6 | 142 |
| 2009 | 37.6 | 144 |
| 2008 | 26.7 | 152 |
| 2007 | 27.3 | 149 |
| 2006 | 15.1 | 154 |
| 2005 | 10.4 | 155 |
| 2004 | 6.5 | 157 |
| 2003 | 4.6 | 157 |
| 2002 | 2.9 | 158 |
| 2001 | 2 | 158 |
| 2000 | 1.5 | 158 |
| 1999 | 0.9 | 157 |
| 1998 | 0.7 | 157 |