Year	Thousand Current Dollars
1920	204356.
1921	233971.
1922	205473.
1923	185029.
1924	216879.
1925	260949.
1926	235567.
1927	237418.
1928	257591.
1929	294788.
1930	329119.
1931	459447.
1932	539445.
1933	528306.
1934	687038.
1935	750369.
1936	787546.
1937	886884.
1938	733578.
1939	0.105662E+07