Gemütlichkeit vs hygge

Gemütlichkeit

noun
  • The state or fact of being gemütlich; middle-class niceness or cosiness, hospitality. 

hygge

noun
  • Cosiness, comfort, contentment, conviviality. 

adj
  • Cosy, convivial. 

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