Year	Millions Of Dollars
1918	4414.90
1919	4275.10
1920	5826.60
1921	4040.30
1922	4220.20
1923	4586.10
1924	4831.20
1925	5389.40
1926	5779.60
1927	5844.70
1928	6131.50
1929	6083.80
1930	5237.10
1931	4136.70
1932	3449.80
1933	3902.70
1934	4495.90