Jeg fant noe på nettet, når jeg søkte på SDR. Jeg veit ikke om du blir noe klokere, men her er det jeg fant.
"The value of the SDR was initially defined as equivalent to 0.888671 grams of fine gold—which, at the time, was also equivalent to one U.S. dollar. After the collapse of the Bretton Woods system in 1973, however, the SDR was redefined as a basket of currencies,today consisting of the euro, Japanese yen, pound sterling, and U.S. dollar. The U.S. dollar-value of the SDR is posted dailyon the IMF's website. It is calculated as the sum of specific amounts of the four currencies valued in U.S. dollars, on the basis of exchange rates quoted at noon each day in the London market.
The basket composition is reviewed every five years to ensure that it reflects the relative importance of currencies in the world's trading and financial systems. In the most recent regular review that took place in October 2000, the method of selecting the currencies and their weights was revised in light of the introduction of the euro as the common currency for a number of European countries, and the growing role of international financial markets. These changes became effective on January 1, 2001. The next review by the Executive Board will take place in late 2005."
Les mer her:
http://www.imf.org/external/np/exr/facts/sdr.HTM