biosphere vs condominium

biosphere

noun
  • The totality of living organisms and their environment. 

  • The part of the Earth and its atmosphere capable of supporting life. 

condominium

noun
  • An individual unit (such as an apartment) in such a complex. 

  • Joint sovereignty over a territory by two or more countries. 

  • The system of ownership by which such condominiums operate 

  • A region or territory under such rule. 

  • The legal tenure involved. 

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