Year Millions Of Dollars 1919 11782.0 1920 13477.0 1921 10269.0 1922 10789.0 1923 11345.0 1924 11946.0 1925 12503.0 1926 12452.0 1927 12621.0 1928 12876.0 1929 13385.0 1930 12774.0 1931 11208.0 1932 9747.00 1933 9019.00 1934 9099.00 1935 9516.00 1936 10120.0 1937 11228.0 1938 11056.0 1939 11375.0