gumption vs shrewdness

gumption

noun
  • Boldness of enterprise; aggressiveness or initiative. 

  • Common sense, initiative, resourcefulness. 

  • Energy of body and mind, enthusiasm. 

shrewdness

noun
  • The quality of being shrewd. 

  • An invented collective name for a group of apes. 

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