Confederate States vs Dixieland

Confederate States

name
  • Synonym of Confederate States of America 

Dixieland

name
  • The southern states of the US; Dixie. 

  • The southwestern corner of Utah; Dixie. 

noun
  • A type of jazz that originated in New Orleans. 

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