Coins were introduced in 1937 in denominations of 1, 5, 10, 25 and 50 centavos. Since 1991, coins of denominations 1, 5, 10 and 25 pesos have been introduced. However, due to inflation, coins below 1 peso are now rarely found. Banknotes in use are 10, 20, 50, 100, 500, 1000 and 2000 pesos.