| التاريخ | Value | تغيير , % |
|---|---|---|
| 2013 | 310.5 | -5.74 % |
| 2012 | 329.4 | -2.40 % |
| 2011 | 337.5 | -22.06 % |
| 2010 | 433.0 | 15.53 % |
| 2009 | 374.8 | 24.97 % |
| 2008 | 299.9 | -40.03 % |
| 2007 | 500.1 | -9.68 % |
| 2006 | 553.7 | -79.69 % |
| 2005 | 2,725.7 | -35.97 % |
| 2004 | 4,256.7 | -16.86 % |
| 2003 | 5,119.8 | -11.54 % |
| 2002 | 5,787.4 |