multitude vs ragtag (and bobtail)

multitude

noun
  • A great amount or number, often of people; abundance, myriad, profusion. 

  • The mass of ordinary people; the masses, the populace. 

ragtag (and bobtail)

How often have the words multitude and ragtag (and bobtail) occurred in a corpus of books? (source: Google Ngram Viewer )