the highest = the best
| التاريخ | Value | تغيير , % |
|---|---|---|
| 2021 | 46.74 | -0.18 % |
| 2020 | 46.82 | -0.52 % |
| 2019 | 47.07 | -0.80 % |
| 2018 | 47.45 | 0.27 % |
| 2017 | 47.32 | 0.51 % |
| 2016 | 47.08 | -0.43 % |
| 2015 | 47.28 | -0.13 % |
| 2014 | 47.34 | 0.34 % |
| 2013 | 47.18 | -0.19 % |
| 2012 | 47.27 | -0.31 % |
| 2011 | 47.42 | 0.26 % |
| 2010 | 47.30 |