The strengths of the Economy of Malta are its limestone, a favourable geographic location, and a productive labour force. Malta produces only about 20% of its food needs, has limited freshwater supplies, and has no domestic energy sources. The economy is dependent on foreign trade, manufacturing (especially electronics), tourism and financial services. In 2003, over 1.2 million tourists visited the island. Per capita GDP of $23,200 places Malta just above the middle of the list of European Union (EU) countries in terms of affluence. The island has joined the EU in 2004 despite having been divided politically over the question earlier. A sizeable budget deficit was a key concern, but recent initiatives by government have changed the situation dramatically enough for the country to be admitted into the eurozone as of 1 January 2008.