Puritan vs nonconformist

Puritan

noun
  • A member of a particular Protestant religious sect advocating greater purity and piety. 

nonconformist

noun
  • Loosely, a Christian who does not conform to the doctrines of an established church. 

  • Someone who does not conform to accepted beliefs, customs or practices. 

  • A member of a church separated from the Church of England; a Protestant dissenter. 

  • A noctuid moth (Lithophane lamda). 

adj
  • Not conforming to established customs, etc. 

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