Back vs Boycott

Back

name

  • A settlement on the Isle of Lewis, Western Isles council area, Scotland (OS grid ref NB4840). 

  • A surname. 

Boycott

name

  • A hamlet in Stowe parish, Buckinghamshire, England (OS grid ref SP6636). 

  • A surname. 

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