get on someone's nerves vs get under one's goat

get on someone's nerves

verb
  • To annoy or irritate someone; to bother someone. 

get under one's goat

verb
  • To irritate or annoy someone; to bother. 

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