free speech vs independence

free speech

noun
  • Expressions that are or should be allowed in some moral or legal context. 

  • The right to express an opinion in public without being restrained or censored. 

independence

noun
  • The quality or state of being independent; lack of dependence; the state of not being reliant on, or controlled by, others. 

  • The state of having sufficient means for a comfortable livelihood. 

How often have the words free speech and independence occurred in a corpus of books? (source: Google Ngram Viewer )