SC vs United States Space Force

SC

noun
  • supercentenarian 

  • simple cubic 

  • subcutaneous injection 

  • stem cell 

  • supercapacitor 

  • supercluster (of galaxies), galaxy superclsuter 

  • superconductor 

adj
  • subcutaneous 

United States Space Force

name
  • The spaceforce of the United States. A branch of the United States of America military dedicated to outer space activities and related support activities. 

How often have the words SC and United States Space Force occurred in a corpus of books? (source: Google Ngram Viewer )