bloc vs consortium

bloc

noun
  • A group of countries acting together for political or economic goals, an alliance: e.g., the eastern bloc, the western bloc, a trading bloc, the Eurozone, the European Union. 

  • A group of voters or politicians who share common goals. 

consortium

noun
  • An association or combination of businesses, financial institutions, or investors, for the purpose of engaging in a joint venture. 

  • A group of symbiotic microbes. 

  • The right of a spouse to all the normal relationships with his or her mate. 

  • An association or society. 

  • A similar arrangement among non-commercial institutions or organizations. 

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