exasperation vs more heat than light

exasperation

noun
  • The act of exasperating or the state of being exasperated; irritation; keen or bitter anger. 

  • Increase of violence or malignity; aggravation; exacerbation. 

more heat than light

noun
  • More passion or conflict than enlightenment or illumination on a subject. 

How often have the words exasperation and more heat than light occurred in a corpus of books? (source: Google Ngram Viewer )