Blighty vs Britain

Blighty

name

  • Great Britain, Britain, or England, especially as viewed from abroad. 

noun

  • Synonym of Blighty one 

Britain

name

  • The United Kingdom. 

  • Brittany. 

  • The British Isles. 

  • The island of Great Britain, consisting of England, Scotland and Wales, especially during antiquity. 

  • The British state and its dominions and holdings; the British Empire. 

  • The British Empire. 

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