The currency of Sierra Leone is the Sierra Leonean leone, abbreviated as SLL. The leone was introduced in 1964, replacing the British West African pound at a rate of 1 leone = 20 shillings. The currency has undergone several changes due to economic fluctuations and civil unrest but was reissued in 2010 with new banknotes and coins. The leone is subdivided into 100 cents and is used for everyday transactions within the country. The Bank of Sierra Leone is responsible for issuing and regulating the currency, aiming to stabilize the economy.