Euro Currency Index table shows the annual high, low and closing levels of the back-calculated Euro Currency Index from 1971 until 2012. ¹ 31. December 2012 Euro Currency Index The Euro Currency Index (EUR_I) represents the arithmetic ratio of four major currencies against the Euro: US-Dollar, British Pound, Japanese Yen and Swiss Franc. All currencies are expressed in units of currency per Euro. The index was launched in 2004 by the exchange portal Stooq.com. Underlying are 100 points on 4 January 1971. Before the introduction of the European single currency on 1 January 1999 an exchange rate of 1 Euro = 1.95583 Deutsche
De facto currency De facto currency A de facto currency is a unit of money that is not legal tender in a country but is treated as such by most of the populace. The United States dollar and the European Union euro are the most common de facto currencies. Andorra used the euro unofficially prior to June 2013, at which point the euro became its official currency. The euro remains the de facto currency in Kosovo and Montenegro. Countries using the United States dollar as their de facto currency include Aruba and Cambodia, where most hotels, restaurants, and transportation are priced in dollars;