Year	Million 1913 Dollars
1919	562.200
1920	337.100
1921	135.900
1922	53.4000
1923	42.9000
1924	39.5000
1925	32.7000
1926	50.7000
1927	41.5000
1928	35.4000
1929	45.8000
1930	57.3000
1931	51.7000
1932	33.5000
1933	20.5000
1935	30.0000
1937	75.0000