Conservative vs leftist

Conservative

noun
  • A member of the Conservative party. 

  • A member or supporter of the Conservative Party of Canada, or its predecessors, or provincial equivalents, or their predecessors 

  • pertaining to Conservative Judaism 

leftist

noun
  • A person who holds views associated with the political left. 

  • Someone who holds socialist or communist-leaning economic views, usually alongside progressive social views; an anticapitalist. 

adj
  • Of or pertaining to the political left. 

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