Quote Originally Posted by Swiss Peter View Post
Must admit that I didn't realise that such a small proportion of the Iranian population are Shia Muslims. Are you sure that is right?
Looks very wrong according to this:

A 2020 survey by the World Values Survey found that 96.6% of Iranians believe in Islam. According to the CIA World Factbook, around 90–95% of Iranian Muslims associate themselves with the Shia branch of Islam, the official state religion, and about 5–10% with the Sunni and Sufi branches of Islam. According to the 2011 Iranian census, 99.98% of Iranians believe in Islam, while the rest of the population believe in other officially recognized minority religions: Christianity, Judaism and Zoroastrianism

https://en.wikipedia.org/wiki/Religion_in_Iran