Sure. Pew Research, a widely-respected nonpartisan fact tank, has conducted several studies in this area. They found that roughly 70% of Muslims worldwide support Sharia as the law of the land, coming out to just over 1.2 billion people.

I don't have to tell you that for women, gay people, and ex-Muslims, this isn't great news. Sometimes facts like these can be uncomfortable, but if we ignore them, things don't improve and real people suffer.

http://www.pewresearch.org/fact-tank/2017/08/09/muslims-and-...