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
Euro national currencies had to be carried out using the process of triangulation via the euro. The "definitive" values of one euro in terms of the exchange rates at which the currency entered the euro are shown on the right. The rates were determined by the Council of the European Union, based on a recommendation from the European Commission based on the market rates on 31 December 1998. They were set so that one European Currency Unit (ECU) would equal one euro. The European Currency Unit was an accounting unit used by the EU, based on the currencies of the member