Year	Millions Of Dollars
1919	53988.0
1920	63011.0
1921	56263.0
1922	56205.0
1923	62887.0
1924	66181.0
1925	66588.0
1926	72110.0
1927	71806.0
1928	73938.0
1929	76723.0
1930	73514.0
1931	60254.0
1932	47282.0
1933	45886.0
1934	52777.0
1935	53963.0
1936	59206.0
1937	65874.0
1938	64876.0
1939	67900.0
1940	72200.0
1941	81500.0
1942	89900.0
1943	99400.0