Answer:
Thanks for the points the answer is at the bottom :D
8. According to a study in 2015, Islam has 1.8 billion adherents, making up about 24.1% of the world population. Most Muslims are either of two denominations: Sunni (87–90%, roughly 1.6 billion people) or Shia (10-13%, roughly 180–230 million people).
9. 10%
Shia makes up roughly 10% of all Muslims, and globally their population is estimated between 154 to 200 million, according to a 2009 report from the Pew Forum. Iran has the largest Shia majority, with more than 66 million making up nearly 90% of the population.