| التاريخ | Value | تغيير , % |
|---|---|---|
| 2019 | 2.71 | -55.29 % |
| 2018 | 6.06 | 2,348.88 % |
| 2017 | 0.25 | -96.63 % |
| 2016 | 7.35 | -48.31 % |
| 2015 | 14.22 | 579.51 % |
| 2014 | 2.09 | -132.04 % |
| 2013 | -6.53 | 118.12 % |
| 2012 | -2.99 | 64.20 % |
| 2011 | -1.82 | -144.31 % |
| 2010 | 4.11 | -30.43 % |
| 2009 | 5.91 | -333.05 % |
| 2008 | -2.54 |