Year	Millions Of Dollars
1920	72.2000
1921	61.0000
1922	50.9000
1923	49.5000
1924	45.3000
1925	47.0000
1926	42.8000
1927	49.2000
1928	62.3000
1929	88.9000
1930	79.0000
1931	78.7000
1932	61.4000
1933	60.5000
1934	71.3000
1935	94.2000
1936	126.800
1937	140.900
1938	143.300
1939	186.600
1940	209.700
1941	161.300
1942	108.600
1943	93.5000
1944	115.800
1945	107.600