The highest = the best
| التاريخ | Value | تغيير , % |
|---|---|---|
| 2023 | 7.80 | -1.64 % |
| 2022 | 7.93 | -2.10 % |
| 2021 | 8.10 | -3.85 % |
| 2020 | 8.42 | -1.06 % |
| 2019 | 8.51 | -1.37 % |
| 2018 | 8.63 | -0.01 % |
| 2017 | 8.63 | 4.44 % |
| 2016 | 8.27 | 0.72 % |
| 2015 | 8.21 | -1.12 % |
| 2014 | 8.30 | -1.19 % |
| 2013 | 8.40 | -0.36 % |
| 2012 | 8.43 |