bank statement vs demand deposit

bank statement

noun
  • A communication from a bank to a person holding an account in that bank, usually issued monthly, detailing the value of the holdings in that account and the effects of all transactions occurring with respect to that account. 

demand deposit

noun
  • A bank deposit that may be withdrawn without notice. 

How often have the words bank statement and demand deposit occurred in a corpus of books? (source: Google Ngram Viewer )