Islamist vs Koran thumper

Islamist

noun

  • A Muslim who espouses Islamic fundamentalist beliefs. 

  • A scholastic Muslim who specializes in Muslim academics. 

adj

  • Motivated by fundamentalist Muslim beliefs, particularly in the political sphere. 

Koran thumper

noun

  • a Muslim fundamentalist, or a zealous Muslim. 

How often have the words Islamist and Koran thumper occurred in a corpus of books? (source: Google Ngram Viewer )