apathy vs sensation

apathy

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

sensation

noun
  • A physical feeling or perception from something that comes into contact with the body; something sensed. 

  • A widespread reaction of interest or excitement. 

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