gentrification vs refurb

gentrification

noun
  • The renewal and rebuilding that accompanies the influx of middle class or affluent people into deteriorating areas and often displaces earlier, usually poorer, residents; any example of such a process. 

refurb

noun
  • The act of refurbishing 

  • a thing that has been refurbished 

verb
  • to refurbish 

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