Agriculture plays an important role in the economy of Turkey, which has signed a Customs Union Agreement with the European Union. Turkey is self sufficient in food production and produces enough surpluses for export as well. Leading industries include the processing of agricultural products, metallurgy, textiles and manufacturing of automobiles and agriculture machinery. With the increased development of summer and winter resort. Turkey is becoming a major European tourist destination, The tourism industry earns an average annual income of more than $ 7 billion U.S. for the Turkish economy, and this amount is increasing yearly.