Currency Composition of Official Foreign Exchange Reserves (COFER)PDF

Claims in US Dollars for 4th quarter 2006 (in Millions of US dollars):
2,156,357

out of total worldwide allocated as reported by COFER:
3,330,454

Is that "The Reserve Currency" of the world.

How about Euro:
859,214

Claims in US dollars:
Industrial:
994,770

Developing countries:
1,161,586

Thus the developing countries have more US dollar reserves than industrialized countries.

Links:
Currency Composition of Official Foreign Exchange Reserves (COFER)