get someone's back up vs get under one's goat

get someone's back up

verb
  • To annoy or anger someone. 

  • That joke really got my boss's back up. 

get under one's goat

verb
  • To irritate or annoy someone; to bother. 

How often have the words get someone's back up and get under one's goat occurred in a corpus of books? (source: Google Ngram Viewer )