Year	Billions Of Dollars
1923	0.681000
1924	0.675000
1925	0.494000
1926	0.610000
1927	0.853000
1928	0.747000
1929	0.736000
1930	1.36300
1931	2.25700
1932	2.48300
1933	1.95400
1934	1.64100
1935	1.44600
1936	0.944000
1937	0.900000
1938	1.30100
1939	0.951000
1940	0.719000
1941	0.517000
1942	0.366000