academic institution vs junior college

academic institution

noun
  • An educational institution, dedicated to higher education and research, that grants academic degrees. 

  • An educational institution, dedicated to teaching and/or research. 

junior college

noun
  • An institution of higher education that awards the associate's degree but not bachelor's degree or higher. 

  • A government high school, usually abbreviated to "JC" 

How often have the words academic institution and junior college occurred in a corpus of books? (source: Google Ngram Viewer )