Year	Millions Of Dollars
1916	69.8600
1917	97.8600
1918	52.6600
1919	93.5100
1920	71.4800
1921	40.7200
1922	62.9000
1923	92.2000
1924	64.2300
1925	76.8600
1926	70.8100
1927	78.5800
1928	80.4800
1929	72.8000
1930	40.4800
1931	14.0000
1932	5.98000
1933	14.8900
1934	30.5700
1935	43.9000
1936	53.7700
1937	46.0300
1938	26.1000
1939	34.4700
1940	43.1300