conserve vs consume

conserve

consume

verb
  • To use up. 

  • To trade money for good or services as an individual. 

  • To completely occupy the thoughts or attention of. 

  • To eat. 

  • To destroy completely. 

  • To absorb information, especially through the mass media. 

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