guesthouse vs posada

guesthouse

noun
  • A small house near a main house, for lodging visitors. 

  • A private house offering accommodation to paying guests; a boarding house; a bed and breakfast. 

posada

noun
  • An inn in Spanish-speaking regions. 

  • A traditional Mexican Christmas procession. 

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