cojones vs valor

cojones

noun
  • Synonym of balls, the male genitalia and courage, masculinity, &c. 

valor

noun
  • Strength of mind in regard to danger; that quality which enables a person to encounter danger with firmness 

  • Value; worth. 

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