Bachelor of Arts vs bachelor

Bachelor of Arts

noun
  • A collegiate degree, usually involving three to four years of study (about 120 semester hours) in liberal arts. 

bachelor

noun
  • Someone who has achieved a bachelor's degree. 

  • The first or lowest academical degree conferred by universities and colleges; 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 Bachelor of Arts and bachelor occurred in a corpus of books? (source: Google Ngram Viewer )