Year	Millions Of Dollars
1918	923.000
1919	1137.00
1920	1423.00
1921	1047.00
1922	1622.00
1923	1638.00
1924	1472.00
1925	1725.00
1926	1922.00
1927	522.000
1928	1697.00
1929	1911.00
1930	1894.00
1931	1700.00
1932	1386.00
1933	1399.00
1934	1367.00
1935	1328.00
1936	1568.00
1937	1768.00
1938	1671.00
1939	1760.00
1940	1874.00
1941	2428.00