Year	Millions Of Dollars
1910	3904.00
1911	3368.00
1912	3767.00
1913	3812.00
1914	3944.00
1915	3818.00
1916	4421.00
1917	7532.00
1918	8713.00
1919	8799.00
1920	7126.00
1921	2990.00
1922	4075.00
1923	4767.00
1924	4716.00
1925	6010.00
1926	5724.00
1927	5447.00
1928	5831.00
1929	5878.00
1930	4340.00
1931	2894.00
1932	1872.00
1933	2614.00
1934	3083.00
1935	4507.00
1936	4710.00
1937	5333.00
1938	4287.00
1939	4478.00
1940	4675.00
1941	6748.00