imitate vs reproduce

imitate

verb
  • To follow as a model or a pattern; to make a copy, counterpart or semblance of. 

reproduce

verb
  • To produce an image or copy of. 

  • To generate or propagate offspring or organisms sexually or asexually. 

  • To bring something to mind; to recall. 

  • To produce again; to recreate. 

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