After 1945, an accelerating process of European integration culminated in the formation of the European Union (EU) in 1993. In the period of 1995–2013, the EU has been enlarged from 12 to 28 member states, far beyond the area originally envisaged for the "pan-European" state by Coudenhove-Kalergi (with the exception of Switzerland), its member states accounting for a population of some 510 million, or two thirds of the population of the entire continent.