bank statement vs checking account

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. 

checking account

noun
  • A current account; a bank account from which money can easily be transferred, by check(US)/cheque(UK) or other means. 

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