Year	Millions Of Dollars
1920	10.8000
1921	22.7000
1922	13.6000
1923	8.50000
1924	9.80000
1925	11.6000
1926	23.2000
1927	35.9000
1928	24.0000
1929	22.2000
1930	23.0000
1931	93.5000
1932	76.1000
1933	72.2000
1934	56.5000
1935	53.6000
1936	54.4000
1937	53.6000
1938	48.6000
1939	53.2000
1940	45.5000
1941	81.1000
1942	228.400
1943	271.000
1944	383.500
1945	423.100