Year	Millions Of Dollars
1919	10215.0
1920	11221.0
1921	3149.00
1922	4502.00
1923	8739.00
1924	5914.00
1925	9459.00
1926	9441.00
1927	8245.00
1928	7740.00
1929	10511.0
1930	3805.00
1931	46.0000
1932	-4350.00
1933	-3703.00
1934	-3229.00
1935	443.000
1936	3658.00
1937	4620.00
1938	585.000
1939	4691.00