Aboriginal vs First Nations

Aboriginal

noun

  • An Aboriginal inhabitant of Australia. 

adj

  • Of or pertaining to Australian Aboriginal peoples, Aborigines, or their language. 

name

  • Any of the native languages spoken by Australian aborigines. 

First Nations

noun

  • The Indigenous (Aboriginal and Torres Strait Islander) peoples of Australia. 

  • The indigenous peoples of Canada (typically not including Inuit or Metis); Indians. 

  • The indigenous peoples of any country or region. 

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