Year	Millions Of Dolllars
1919	3954.00
1920	7271.00
1921	153.000
1922	600.000
1923	3052.00
1924	-886.000
1925	1752.00
1926	1553.00
1927	447.000
1928	-339.000
1929	1699.00
1930	-349.000
1931	-1240.00
1932	-2513.00
1933	-1521.00
1934	-928.000
1935	1281.00
1936	1346.00
1937	2369.00
1938	-592.000
1939	618.000