Year	Millions Of Dollars
1919	6194.00
1920	6302.00
1921	4025.00
1922	4139.00
1923	5805.00
1924	5441.00
1925	5924.00
1926	6395.00
1927	5924.00
1928	6348.00
1929	7485.00
1930	5765.00
1931	3731.00
1932	2090.00
1933	2186.00
1934	3000.00
1935	3900.00
1936	4900.00
1937	6100.00
1938	4400.00
1939	6300.00
1940	8000.00
1941	14200.0
1942	35100.0
1943	56500.0