building society vs lender

building society

noun
  • A type of financial institution which traditionally was based on lending money (as mortgages) to society members to buy houses, from other members pooled savings and/or money borrowed wholesale. 

lender

noun
  • One who lends, especially money; specifically, a bank or other entity that specializes in granting loans. 

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