megadeath vs victimization

megadeath

noun
  • One million deaths, especially as a unit of measure in reference to nuclear warfare. 

victimization

noun
  • Adversity as a result of being a victim. 

  • An act that victimizes or exploits someone. 

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