Year	Millions Of Dollars
1918	1492.00
1919	2354.00
1920	1791.00
1921	1132.00
1922	1276.00
1923	1399.00
1924	1666.00
1925	1827.00
1926	1974.00
1927	2095.00
1928	2152.00
1929	2205.00
1930	1926.00
1931	1556.00
1932	1338.00
1933	1588.00
1934	1777.00
1935	1794.00
1936	2160.00
1937	2280.00
1938	2198.00
1939	2307.00
1940	2393.00
1941	3028.00