constituency vs ownership

constituency

noun
  • The voters of a candidate. 

  • A district represented by one or more elected officials. 

  • An interest group or fan base. 

  • The residents of such a district. 

  • The voters within such a district. 

ownership

noun
  • The state of having complete legal control of something; possession; proprietorship. 

  • Responsibility for something. 

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