bailiwick vs inner city

bailiwick

noun
  • The district within which a bailie or bailiff has jurisdiction. 

  • A person's concern or sphere of operations, their area of skill or authority. 

inner city

noun
  • The interior, central part of a city, as opposed to the suburbs 

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