Source: Banco Central de Costa Rica

Notes:
n1/ Until 11/10/1983, it belongs to the "Interbank Market"
n2/ From 11/11/1983 until 03/01/1992, it belongs to the "Free Interbank Market"
n3/ Since 03/02/1992 to date the "Banco Central de Costa Rica Reference Exchange Rate" has been in force
n4/ For purposes of exchange rate expressed as a monthly average, please refer to the subject of the External Sector, sub-theme Exchange Rate and Foreign Exchange Market
n5/ Methodology for calculating the reference rate (Article 9 of the Rules for cash exchange operations)