pester vs rile

pester

verb
  • To bother, harass, or annoy persistently. 

noun
  • A bother or nuisance. 

rile

verb
  • To make angry. 

  • To stir or move from a state of calm or order. 

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