the highest = the best
| التاريخ | Value | تغيير , % |
|---|---|---|
| 2021 | 66.33 | -0.16 % |
| 2020 | 66.44 | 0.23 % |
| 2019 | 66.29 | 1.28 % |
| 2018 | 65.45 | -0.18 % |
| 2017 | 65.57 | -0.78 % |
| 2016 | 66.09 | 0.72 % |
| 2015 | 65.61 | 0.14 % |
| 2014 | 65.52 | 1.04 % |
| 2013 | 64.84 | 0.46 % |
| 2012 | 64.54 | 0.53 % |
| 2011 | 64.20 | 0.37 % |
| 2010 | 63.97 |