the highest = the best
| التاريخ | Value | تغيير , % |
|---|---|---|
| 2021 | 53.57 | -0.94 % |
| 2020 | 54.07 | 0.28 % |
| 2019 | 53.93 | 0.40 % |
| 2018 | 53.71 | -0.01 % |
| 2017 | 53.71 | -0.03 % |
| 2016 | 53.73 | 0.30 % |
| 2015 | 53.57 | -0.16 % |
| 2014 | 53.65 | 0.30 % |
| 2013 | 53.49 | -0.13 % |
| 2012 | 53.56 | -0.10 % |
| 2011 | 53.61 | -0.13 % |
| 2010 | 53.68 |