Economic conditions have fluctuated with the changing price of oil since 1985, for example during and following the Persian Gulf crisis of 1990–91. With its highly developed communication and transport facilities, Bahrain is home to a number of multinational firms and construction proceeds on several major industrial projects. A large share of exports consist of petroleum products made from imported crude oil, which accounted for 51% of the country's imports in 2007. Bahrain depends heavily on food imports to feed its growing population; it relies heavily on meat imports from Australia and also imports 75% of its total fruit consumption needs. Since only 2.9% of the country's land is arable, agriculture contributes to 0.5% of Bahrain's GDP. In 2004, Bahrain signed the Bahrain–US Free Trade Agreement, which will reduce certain trade barriers between the two nations. In 2011, due to the combination of the global financial crisis and the recent unrest, the gdp growth rate decreased to 1.3%, which was the lowest growth rate since 1994.