bank account vs bank statement

bank account

noun
  • A fund, held by a bank in a contractual arrangement between the bank and the owner of the fund, a customer of the bank, into which they can deposit and from which they can withdraw money. 

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. 

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