banknote vs current account

banknote

noun
  • A promissory note issued by a bank, payable at a given time to a specific beneficiary. 

  • A piece of paper currency. 

current account

noun
  • A checking account (US) at a bank which is used for daily transactions, as opposed to a deposit account or savings account. 

  • That part of the balance of payments recording a nation's exports and imports of goods and services and transfer payments 

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