Administrator vs monarchy

Administrator

noun
  • The queen's representative in some Commonwealth territories, comparable to a Governor General. 

monarchy

noun
  • States based on a system of governance headed by a king or a queen. 

  • The territory ruled over by a monarch; a kingdom. 

  • A government in which sovereignty is embodied within a single, today usually hereditary head of state (whether as a figurehead or as a powerful ruler). 

  • A form of government where sovereignty is embodied by a single ruler in a state and his high aristocracy representing their separate divided lands within the state and their low aristocracy representing their separate divided fiefs. 

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