day trip vs tourism

day trip

noun
  • An excursion that lasts most of the day. 

tourism

noun
  • The act of travelling or sightseeing, particularly away from one's home. 

  • The industry in which such travels and sightseeing are organized. 

  • The act of visiting another region or jurisdiction for a particular purpose. 

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