New Zealand vs North Island

New Zealand

name

  • The islands of New Zealand, especially the North Island, South Island and nearby coastal islands. 

  • The Realm of New Zealand, including the Cook Islands, Niue, Tokelau and the Ross Dependency. 

  • A country in Oceania, to the east of Australia. Official name: New Zealand. Abbreviation: NZ or Aotearoa 

noun

  • A rabbit of a breed that originated in California from rabbits imported from New Zealand. 

North Island

name

  • An island, the northernmost of the two major islands making up New Zealand. 

How often have the words New Zealand and North Island occurred in a corpus of books? (source: Google Ngram Viewer )