MA vs Master of Science

MA

name
  • Postal abbreviation of Massachusetts, a state of the United States of America. 

  • Maluku, a province of Indonesia. 

  • Maranhão, a state of Brazil. 

Master of Science

noun
  • A degree that usually requires 2-3 years beyond a Bachelor of Science and emphasizes science and scientific applications. The degree is less advanced than a Doctorate degree. 

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