get under one's goat vs importune

get under one's goat

verb
  • To irritate or annoy someone; to bother. 

importune

verb
  • To bother, irritate, trouble. 

  • To harass with persistent requests. 

  • To approach to offer one's services as a prostitute, or otherwise make improper proposals. 

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