the highest = the best
| التاريخ | Value | تغيير , % |
|---|---|---|
| 2021 | 68.66 | -0.35 % |
| 2020 | 68.90 | 0.17 % |
| 2019 | 68.78 | 1.11 % |
| 2018 | 68.03 | 0.29 % |
| 2017 | 67.83 | -0.52 % |
| 2016 | 68.18 | -0.31 % |
| 2015 | 68.39 | 0.42 % |
| 2014 | 68.11 | 1.41 % |
| 2013 | 67.16 | 0.58 % |
| 2012 | 66.77 | 0.33 % |
| 2011 | 66.56 | -0.61 % |
| 2010 | 66.97 |