Burgerland vs States

Burgerland

name
  • The United States of America. 

States

name
  • Those parts of the United States comprising states rather than territories. 

  • The parliament of either of the two Channel Islands countries: the States of Guernsey or the States of Jersey. 

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