Islamicist vs Koran thumper

Islamicist

noun

  • An Islamic fundamentalist. 

  • An expert or scholar in Islam. 

adj

  • Pertaining to Islamic fundamentalism. 

  • Pertaining to Islamic scholarship. 

Koran thumper

noun

  • a Muslim fundamentalist, or a zealous Muslim. 

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