the highest = the best
| التاريخ | Value | تغيير , % |
|---|---|---|
| 2021 | 43.62 | -0.62 % |
| 2020 | 43.89 | -1.24 % |
| 2019 | 44.44 | 1.97 % |
| 2018 | 43.58 | -0.14 % |
| 2017 | 43.64 | 0.81 % |
| 2016 | 43.29 | 0.07 % |
| 2015 | 43.26 | 0.25 % |
| 2014 | 43.16 | 2.82 % |
| 2013 | 41.97 | 0.82 % |
| 2012 | 41.63 | 4.68 % |
| 2011 | 39.77 | 3.91 % |
| 2010 | 38.27 |