associate's degree vs bachelor

associate's degree

noun
  • An academic degree awarded after the equivalent of approximately two years of college education, usually by community colleges. 

bachelor

noun
  • The first or lowest academical degree conferred by universities and colleges; a bachelor's degree. 

  • Someone who has achieved a bachelor's degree. 

  • A person, especially a man, who is socially regarded as able to marry, but has not yet. 

  • A bachelor apartment. 

  • A kind of bass, an edible freshwater fish (Pomoxis annularis) of the southern United States. 

How often have the words associate's degree and bachelor occurred in a corpus of books? (source: Google Ngram Viewer )