lawbreaker vs mugger

lawbreaker

noun
  • One who breaks (violates) the law, a criminal. 

mugger

noun
  • A person who assaults and robs others, especially in a public place. 

  • A large crocodile, Crocodylus palustris, of southwest Asia, having a very broad wrinkled snout. 

  • A person who makes exaggerated faces, as a performance; a gurner. 

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