Year	Millions Of Dollars
1919	59004.0
1920	68523.0
1921	57111.0
1922	59718.0
1923	67895.0
1924	69088.0
1925	71992.0
1926	75035.0
1927	76119.0
1928	77944.0
1929	82421.0
1930	76520.0
1931	65061.0
1932	52069.0
1933	48658.0
1934	53758.0
1935	58015.0
1936	64537.0
1937	70966.0
1938	66061.0