Year	Millions Of Dollars
1909	3590.00
1910	3761.00
1911	3503.00
1912	4151.00
1913	4714.00
1914	3940.00
1915	5310.00
1916	8766.00
1917	10730.0
1918	8362.00
1919	9411.00
1920	7903.00
1921	4336.00
1922	6964.00
1923	8322.00
1924	7587.00
1925	9584.00
1926	9673.00
1927	8982.00
1928	10618.0
1929	11654.0
1930	6429.00
1931	3683.00
1932	2153.00
1933	2986.00
1934	4275.00
1935	5165.00
1936	6761.00
1937	6944.00
1938	4703.00
1939	6814.00
1940	9106.00