Denmark is the 5th most competitive country in the World with its modern agriculture and high standard of living. The state is wealthy, their national currency, the Danish crown, is stable. Denmark does not have any outstanding national debt, its balance of payments is positive. Over 75% of the employed in Denmark are part a union. Denmark has long fulfilled all requirements necessary for the euro currency switch, but the Danish people have rejected the referendum in 2000. With its saleable goods, modern agrotechnology and excellent productivity, over 60% of Denmarks lands used for agricultural production. Their main exports are fuel and other hydrocarbons, food, and mechanical goods, ships, and electronics. Denmark is the main exporter of nordmann christmas trees in Europe.