apathy vs boredom

apathy

noun
  • Lack of emotion or motivation; lack of interest or enthusiasm towards something; disinterest (in something). 

boredom

noun
  • An instance or period of being bored; A bored state. 

  • The state of being bored. 

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