Jubilee vs Leam

Jubilee

name
  • A London Underground line which runs between Stratford in East London and Stanmore in northwest London, via the London Docklands, South Bank, and West End. 

Leam

name
  • A river in England that rises in Northamptonshire, before flowing through Warwickshire and joining the Warwickshire Avon near Warwick. 

  • Leamington Spa 

  • A hamlet in Grindleford parish, Derbyshire Dales district, Derbyshire, England (OS grid ref SK2379). 

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