Frenchman vs Frenchwoman

Frenchman

noun
  • A man of French birth or nationality. 

  • The red-legged partridge. 

  • A home-made tool used by bricklayers to cut excess mortar from newly pointed brickwork. 

Frenchwoman

noun
  • A French woman; a woman of French ancestry, descent or citizenship. 

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