| التاريخ | Value | تغيير , % |
|---|---|---|
| 2020 | 17,953 | -0.38 % |
| 2019 | 18,022 | -0.16 % |
| 2018 | 18,050 | -0.80 % |
| 2017 | 18,195 | -0.29 % |
| 2016 | 18,248 | -1.51 % |
| 2015 | 18,528 | -2.07 % |
| 2014 | 18,920 | -1.83 % |
| 2013 | 19,273 | -2.07 % |
| 2012 | 19,680 | -1.11 % |
| 2011 | 19,901 | 0.54 % |
| 2010 | 19,794 | -3.63 % |
| 2009 | 20,540 |