USAian vs Usanian

USAian

adj

  • Of or pertaining to the United States. 

noun

  • A citizen or resident of the United States. 

Usanian

adj

  • Of or pertaining to the United States of America. 

noun

  • An inhabitant or citizen of the United States of America. 

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