Quarter	Millions Of Tons: Seasonally Adjusted By Nber
1920-01-01	295.900
1920-04-01	298.500
1920-07-01	307.500
1920-10-01	299.500
1921-01-01	234.700
1921-04-01	222.200
1921-07-01	220.000
1921-10-01	223.000
1922-01-01	240.000
1922-04-01	216.500
1922-07-01	235.300
1922-10-01	285.000
1923-01-01	308.600
1923-04-01	328.400
1923-07-01	306.700
1923-10-01	291.300
1924-01-01	300.400
1924-04-01	278.500
1924-07-01	275.900
1924-10-01	293.000
1925-01-01	297.400
1925-04-01	306.200
1925-07-01	306.100
1925-10-01	296.200
1926-01-01	305.000
1926-04-01	326.700
1926-07-01	330.100
1926-10-01	331.400
1927-01-01	327.700
1927-04-01	322.200
1927-07-01	311.300
1927-10-01	286.300
1928-01-01	299.200
1928-04-01	311.800
1928-07-01	313.800
1928-10-01	318.600
1929-01-01	314.000
1929-04-01	339.500
1929-07-01	339.500
1929-10-01	309.000
1930-01-01	291.500
1930-04-01	301.900
1930-07-01	283.800
1930-10-01	249.900
1931-01-01	234.400
1931-04-01	232.700
1931-07-01	216.700
1931-10-01	191.600
1932-01-01	177.500
1932-04-01	147.200
1932-07-01	141.700
1932-10-01	167.400
1933-01-01	153.000
1933-04-01	161.100
1933-07-01	189.500
1933-10-01	176.400
1934-01-01	206.400
1934-04-01	197.100
1934-07-01	175.800
1934-10-01	176.000
1935-01-01	200.200
1935-04-01	193.300
1935-07-01	182.200
1935-10-01	201.200
1936-01-01	224.500
1936-04-01	230.000
1936-07-01	234.400
1936-10-01	251.300
1937-01-01	258.500
1937-04-01	269.400
1937-07-01	253.300
1937-10-01	220.400
1938-01-01	188.100
1938-04-01	174.500
1938-07-01	185.700
1938-10-01	208.400
1939-01-01	207.900
1939-04-01	195.800
1939-07-01	225.800
1939-10-01	252.700
1940-01-01	236.300
1940-04-01	245.000
1940-07-01	255.900
1940-10-01	254.800
1941-01-01	277.700
1941-04-01	299.900
1941-07-01	318.400
1941-10-01	308.900
1942-01-01	322.500
1942-04-01	373.200
1942-07-01	357.700
1942-10-01	347.500
1943-01-01	367.800