Berg vs Leader

Berg

name
  • A former duchy and later grand duchy in Westphalia (Western Germany). 

  • A municipality of Troms, Norway. 

  • A surname from German common in the US, associated with German or Scandinavian ancestry. 

Leader

name
  • A town in the Rural Municipality of Happyland No. 231, western Saskatchewan, Canada, originally named Prussia. 

  • A river in north Canterbury, New Zealand, which joins the (Canterbury) Waiau. 

  • A surname originating as an occupation for a person who led a horse and cart. 

  • A locality in Adams County, Colorado, United States. 

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