The Netherlands has a prosperous and open economy, which depends heavily on foreign trade. The economy is noted for stable industrial relations, moderate unemployment and inflation, a sizable current account surplus, and an important role as a European transportation hub. Industrial activity is predominantly in food processing, chemicals, petroleum refining, and electrical machinery. A highly mechanized agricultural sector employs no more than 4% of the labor force but provides large surpluses for the food-processing industry and for exports. The Netherlands, along with 11 of its EU partners, began circulating the euro currency on 1 January 2002. The country continues to be one of the leading European nations for attracting foreign direct investment. Economic growth slowed considerably in 2001-03, as part of the global economic slowdown, but for the four years before that, annual growth averaged nearly 4%, well above the EU average. The government is wrestling with a deteriorating budget position, and is moving toward the EU 3% of GDP budget deficit limit.