Do You Know the Number of Muslims on Earth?

A population reference bureau says 108 billion. That includes Neanderthals and all of these other species that we still have to figure out what they were or whatnot. How many how many Muslims are currently on Earth roughly? Roughly about a billion or so. Give me a one point. One point right now one point two billion right isn't that the number? Rough rough ballpark estimate.How many Muslims since the time of the profit system until Kiyama just a rough ballpark.