Thank you for the link, why did the Jewish population go from at least 25,000 in 2000 to less than 9,000 today in Iran? Is it a common occurrence for a religiou

Thank you for the link, why did the Jewish population go from at least 25,000 in 2000 to less than 9,000 today in Iran? Is it a common occurrence for a religious group to dwindle by half in two decades in a country? https://en.m.wikipedia.org/wiki/Persian_Jews https://en.m.wikipedia.org/wiki/Persian_Jews