| 时间 | 值 （亿元） | 世界排名 |
|---|---|---|
| 2016 | 160.5 | 113 |
| 2015 | 133.4 | 126 |
| 2014 | 111.9 | 129 |
| 2013 | 98.4 | 131 |
| 2012 | 79 | 134 |
| 2011 | 71 | 135 |
| 2010 | 62 | 138 |
| 2009 | 47.6 | 141 |
| 2008 | 44.2 | 145 |
| 2007 | 41 | 144 |
| 2006 | 28 | 147 |
| 2005 | 19.6 | 149 |
| 2004 | 15.3 | 150 |
| 2003 | 11 | 149 |
| 2002 | 8.9 | 151 |
| 2001 | 7.5 | 151 |
| 2000 | 6.3 | 152 |
| 1999 | 4.5 | 151 |
| 1998 | 3.7 | 151 |
| 1997 | 3.8 | 150 |
| 1996 | 2.6 | 147 |
| 1995 | 1.9 | 147 |