indoors vs patio

indoors

adv
  • Inside, into, or within a building. 

noun
  • The interior of a building; the space inside buildings generally. 

patio

noun
  • A paved outside area, adjoining a house, used for dining or recreation. 

  • An inner courtyard typical of traditional houses in some regions of Spain. 

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