estimation vs popularity

estimation

noun
  • Esteem or favourable regard. 

  • The process of making an estimate. 

  • The amount, extent, position, size, or value reached in an estimate. 

popularity

noun
  • The quality or state of being popular; especially, the state of being esteemed by, or of being in favor with, the people at large 

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