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The exchange rates on Norges Bank's website are middle rates, i.e. the mid-point between buying and selling rates in the interbank market at a given time. Close to the time when the exchange rates are quoted, the European Central Bank (ECB) obtains a relevant exchange rate, for example, the number of Norwegian kroner for a euro, in the interbank market from banks and electronic trading systems, and sets the most accurate market rate possible at this point in time.
In the case of currencies not covered by this reporting, Norges Bank obtains market rates from electronic information systems and/or banks. Because an exchange rate always expresses the relationship between two currencies, reporting from the central banks of other countries is used to calculate exchange rates in Norwegian accounting.
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