Aggressor vs rascal

Aggressor

noun
  • a citizen/subject of the fictional Aggressor state 

name
  • a fictional state created by the United States Army for maneuver and military exercise purposes in the 1950's 

rascal

noun
  • A dishonest person; a rogue, a scoundrel, a trickster. 

  • Sometimes diminutive: a cheeky person or creature; a troublemaker. 

  • A member of a criminal gang. 

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