métier vs vocation

métier

noun
  • An activity to which a person is particularly suited. 

  • Any activity that is pursued as a trade or profession; a calling. 

  • An outstanding or beneficial feature. 

vocation

noun
  • An occupation for which a person is suited, trained or qualified. 

  • An inclination to undertake a certain kind of work, especially a religious career; often in response to a perceived summons; a calling. 

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