Blighty vs United Kingdom

Blighty

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

noun
  • Synonym of Blighty one 

United Kingdom

name
  • The United Kingdom of Great Britain and Ireland (1801–1922). 

  • A kingdom and sovereign state in Western Europe comprising the four countries of England, Scotland and Wales in the island of Great Britain, and Northern Ireland in the island of Ireland. Since 1922. 

  • The Kingdom of Great Britain (1707–1801). 

  • Kingdom consisting of several constituencies, actual, historical, or hypothetical. 

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