You have any statistics then?  What is a very small stat. Say 1% of Muslims are( or agree) with fundamentalists. That's 16 million people. A lot of people if compared to our population. I've read stats where in major Muslim countries, well over half agree with sharia. A law which uses hard oppression. That could peg that fundamentalist number up to 20-30% which far exceeds our nations pupulation. Here's some Muslim stats. I do not in any way condone whatever message comes from this site, I have not even read anything besides the stats and polls listed on the bottom which is plentiful and why I chose this site. The polls and stats come from a wider array of polls and studies hence the reason I used it. 
http://www.thereligionofpeace.com/pages/articles/opinion-polls.aspx