| التاريخ | Value | تغيير , % |
|---|---|---|
| 2019 | 5.60 | -1.07 % |
| 2018 | 5.66 | -32.90 % |
| 2017 | 8.43 | -439.47 % |
| 2016 | -2.48 | -81.54 % |
| 2015 | -13.46 | -353.93 % |
| 2014 | 5.30 | -185.06 % |
| 2013 | -6.23 | -159.78 % |
| 2012 | 10.42 | -254.56 % |
| 2011 | -6.74 | -139.48 % |
| 2010 | 17.08 | -381.62 % |
| 2009 | -6.06 | -211.36 % |
| 2008 | 5.45 |