Year	Billions Of Dollars
1919	4.59000
1920	5.44000
1921	6.18000
1922	6.21000
1923	6.38000
1924	7.09000
1925	6.97000
1926	7.15000
1927	7.70000
1928	7.46000
1929	7.71000
1930	8.15000
1931	7.78000
1932	7.48000
1933	6.45000
1934	5.96000
1935	6.07000
1936	6.05000
1937	6.54000
1938	6.95000