Currency pair euro has strengthened, or both. On the other hand, if the EUR/USD (or EURUSD) quote changes from 1.2500 to 1.2490 the euro has become relatively weaker than the dollar. The rules for formulating standard currency pair notations result from accepted priorities attributed to each currency. From its inception in 1999 and as stipulated by the European Central Bank, the euro has first precedence as a base currency. Therefore, all currency pairs involving it should use it as their base, listed first. For example, the US dollar and euro exchange rate is identified as EUR/USD. Although there is no standards-setting body
International status and usage of the euro euro exceed dollar reserves for the first time; Russia held 47.5% (up from 42% in 2008) in euro and 41.5% (down from 47%) in dollar leading the Central Bank of Russia to announce the euro had become the reserve currency of Russia. The usage of the euro is particularly strong in eastern Europe, not surprisingly in those that have joined the EU, with 54.8% of all loans in Bulgaria, and 85.2% in Latvia before Eurozone accession, being issued in euro rather than the local currencies. The following table shows central banks allocated reserves in euros and US dollar. A currency