Manufacturing contributed 17% of GDP in 2006. Venezuela manufactures and exports heavy industry products such as steel, aluminium and cement, with production concentrated around Ciudad Guayana, near the Guri Dam, one of the largest in the world and the provider of about three-quarters of Venezuela's electricity. Other notable manufacturing includes electronics and automobiles, as well as beverages, and foodstuffs. Agriculture in Venezuela accounts for approximately 3% of GDP, 10% of the labor force, and at least a quarter of Venezuela's land area. The country is not self-sufficient in most areas of agriculture. In 2012, total food consumption was over 26 million metric tonnes, a 94.8% increase from 2003.