innocent vs not to blame

innocent

noun
  • One who is innocent, especially a young child. 

adj
  • Free from guilt, sin, or immorality. 

  • Not harmful; innocuous; harmless; benign. 

  • Without wrongful intent; accidental or in good faith. 

  • Naive; artless. 

  • Not contraband; not subject to forfeiture. 

  • Lawful; permitted. 

  • Bearing no legal responsibility for a wrongful act. 

  • Lacking (something), or knowledge of it. 

not to blame

How often have the words innocent and not to blame occurred in a corpus of books? (source: Google Ngram Viewer )