Mapping the Global Muslim Population
A new, comprehensive study of more than 200 countries finds that there are 1.57 billion Muslims of all ages living in the world today, representing 23% of an estimated 2009 world population of 6.8 billion. The report by the Pew Research Center's Forum on Religion & Public Life offers the most up-to-date and fully sourced estimates of the size and distribution of the worldwide Muslim population.
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