Buller vs Dart

Buller

name
  • A local government district in the same area of New Zealand. 

  • A surname from Middle English. 

  • A river and gorge on the West Coast, New Zealand. 

Dart

name
  • A town in Ontario, Canada 

  • A river in Devon, England, which flows from Dartmoor to the English Channel at Dartmouth. 

  • A surname from Middle English. 

noun
  • An officer trained at Britannia Royal Naval College, Dartmouth, England. 

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