mirth vs sense of humour

mirth

noun
  • The emotion usually following humour and accompanied by laughter; merriment; jollity; gaiety. 

  • That which causes merriment. 

sense of humour

noun
  • The quality of an individual to find certain things funny. 

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