Year	Millions Of Dollars
1919	10118.0
1920	11741.0
1921	9521.00
1922	9823.00
1923	11125.0
1924	10497.0
1925	11024.0
1926	11530.0
1927	11671.0
1928	11837.0
1929	12077.0
1930	10475.0
1931	8804.00
1932	6541.00
1933	6349.00
1934	7300.00
1935	7900.00
1936	8500.00
1937	8600.00
1938	8400.00
1939	9200.00
1940	9600.00
1941	11300.0
1942	13200.0
1943	15600.0