Prior to the Second World War, the United States was cautious with regard to its manufacturing capabilities as the country was still recovering from the Great Depression. However, during the war, Franklin Roosevelt set ambitious production goals to fulfill. The early 1940s were set to have 60,000 aircraft increasing to 125,000 in 1943. In addition, targets for the production of 120,000 tanks and 55,000 aircraft were set during the same time period. The Ford Motor Company in Michigan built one motor car (comprising 15,000 parts) on the assembly lines every 69 seconds. Ford's production contributed to America's total production of vehicles totalling three million in 1941. American production numbers caused the US employed workforce to increase massively. America's yearly production exceeded Japan's production building more planes in 1944 than Japan built in all the war years combined. As a result, half of the world's war production came from America. The government paid for this production using techniques of selling war bonds to financial institutions, rationing household items and creating more tax revenues. Some contribution to the US wartime manufacturing boom can be ascribed to the prior creation of the Alcoa plant in the 1930s. The Alcoa plant prepared thousands of tons of aluminum used for the production of 304,000 aeroplanes during the war. The United States quickly adjusted to the levels of production required to equip its military with the millions of war products used during World War II.[35]