Year	Millions Of Dollars
1919	2886.00
1920	3215.00
1921	2963.00
1922	3048.00
1923	3839.00
1924	3812.00
1925	4424.00
1926	4725.00
1927	5050.00
1928	5493.00
1929	6300.00
1930	5992.00
1931	4646.00
1932	3016.00
1933	2471.00
1934	3013.00
1935	3770.00
1936	4838.00
1937	4946.00
1938	3486.00
1939	4040.00