Further inflation since the soberano redenomination resulted in the creation of Bs.S 10,000, Bs.S 20,000 and Bs.S 50,000 banknotes in June 2019. Not mentioning inflation, the Central Bank of Venezuela said the introduction of the new banknotes would "complement and optimize" the monetary system and that their purpose was to make payment systems "more efficient". On 23 April 2020, the exchange rate per xe.com was 1 USD = 144,697.34 VES; the following day, the rate slid to 1 USD = 171,140.42 VES.