Month	Thousands Of Short Tons
1919-01-01	172.000
1919-02-01	172.000
1919-03-01	171.000
1919-04-01	159.000
1919-05-01	146.000
1919-06-01	133.000
1919-07-01	138.000
1919-08-01	136.000
1919-09-01	136.000
1919-10-01	134.000
1919-11-01	121.000
1919-12-01	120.000
1920-01-01	121.000
1920-02-01	123.000
1920-03-01	110.000
1920-04-01	124.000
1920-05-01	127.000
1920-06-01	139.000
1920-07-01	150.000
1920-08-01	162.000
1920-09-01	174.000
1920-10-01	168.000
1920-11-01	171.000
1920-12-01	176.000
1921-01-01	176.000
1921-02-01	178.000
1921-03-01	180.000
1921-04-01	182.000
1921-05-01	162.000
1921-06-01	145.000
1921-07-01	145.000
1921-08-01	159.000
1921-09-01	159.000
1921-10-01	159.000
1921-11-01	154.000
1921-12-01	147.000
1922-01-01	144.000
1922-02-01	150.000
1922-03-01	146.000
1922-04-01	136.000
1922-05-01	139.000
1922-06-01	147.000
1922-07-01	154.000
1922-08-01	176.000
1922-09-01	179.000
1922-10-01	173.000
1922-11-01	174.000
1922-12-01	162.000
1923-01-01	171.000
1923-02-01	173.000
1923-03-01	167.000
1923-04-01	165.000
1923-05-01	174.000
1923-06-01	186.000
1923-07-01	198.000
1923-08-01	223.000
1923-09-01	224.000
1923-10-01	222.000
1923-11-01	220.000
1923-12-01	211.000
1924-01-01	222.000
1924-02-01	219.000
1924-03-01	208.000
1924-04-01	198.000
1924-05-01	198.000
1924-06-01	194.000
1924-07-01	211.000
1924-08-01	225.000
1924-09-01	227.000
1924-10-01	221.000
1924-11-01	206.000
1924-12-01	200.000
1925-01-01	196.000
1925-02-01	198.000
1925-03-01	191.000
1925-04-01	185.000
1925-05-01	175.000
1925-06-01	183.000
1925-07-01	196.000
1925-08-01	197.000
1925-09-01	191.000
1925-10-01	178.000
1925-11-01	166.000
1925-12-01	164.000
1926-01-01	160.000
1926-02-01	166.000
1926-03-01	167.000
1926-04-01	161.000
1926-05-01	152.000
1926-06-01	165.000
1926-07-01	184.000
1926-08-01	202.000
1926-09-01	207.000
1926-10-01	205.000
1926-11-01	207.000
1926-12-01	218.000
1927-01-01	221.000
1927-02-01	218.000
1927-03-01	216.000
1927-04-01	205.000
1927-05-01	189.000
1927-06-01	190.000
1927-07-01	197.000
1927-08-01	218.000
1927-09-01	216.000
1927-10-01	208.000
1927-11-01	209.000
1927-12-01	212.000
1928-01-01	204.000
1928-02-01	210.000
1928-03-01	198.000
1928-04-01	185.000
1928-05-01	185.000
1928-06-01	184.000
1928-07-01	188.000
1928-08-01	199.000
1928-09-01	191.000
1928-10-01	188.000
1928-11-01	192.000
1928-12-01	198.000
1929-01-01	194.000
1929-02-01	189.000
1929-03-01	176.000
1929-04-01	170.000
1929-05-01	165.000
1929-06-01	168.000
1929-07-01	189.000
1929-08-01	201.000
1929-09-01	194.000
1929-10-01	192.000
1929-11-01	208.000
1929-12-01	223.000
1930-01-01	224.000
1930-02-01	217.000
1930-03-01	202.000
1930-04-01	194.000
1930-05-01	196.000
1930-06-01	190.000
1930-07-01	203.000
1930-08-01	213.000
1930-09-01	206.000
1930-10-01	202.000
1930-11-01	199.000
1930-12-01	205.000
1931-01-01	199.000
1931-02-01	194.000
1931-03-01	182.000
1931-04-01	179.000
1931-05-01	173.000
1931-06-01	177.000
1931-07-01	185.000
1931-08-01	180.000
1931-09-01	180.000
1931-10-01	177.000
1931-11-01	178.000
1931-12-01	183.000
1932-01-01	178.000
1932-02-01	178.000
1932-03-01	162.000
1932-04-01	172.000
1932-05-01	165.000
1932-06-01	163.000
1932-07-01	164.000
1932-08-01	164.000
1932-09-01	161.000
1932-10-01	151.000
1932-11-01	157.000
1932-12-01	152.000
1933-01-01	148.000
1933-02-01	143.000
1933-03-01	134.000
1933-04-01	129.000
1933-05-01	125.000
1933-06-01	123.000
1933-07-01	141.000
1933-08-01	156.000
1933-09-01	164.000
1933-10-01	166.000
1933-11-01	175.000
1933-12-01	184.000
1934-01-01	189.000
1934-02-01	180.000
1934-03-01	184.000
1934-04-01	190.000
1934-05-01	203.000
1934-06-01	209.000
1934-07-01	218.000
1934-08-01	231.000
1934-09-01	221.000
1934-10-01	209.000
1934-11-01	216.000
1934-12-01	250.000
1935-01-01	232.000
1935-02-01	212.000
1935-03-01	188.000
1935-04-01	183.000
1935-05-01	186.000
1935-06-01	187.000
1935-07-01	195.000
1935-08-01	200.000
1935-09-01	199.000
1935-10-01	198.000
1935-11-01	204.000
1935-12-01	228.000
1936-01-01	211.000
1936-02-01	200.000
1936-03-01	188.000
1936-04-01	183.000
1936-05-01	183.000
1936-06-01	181.000
1936-07-01	193.000
1936-08-01	202.000
1936-09-01	212.000
1936-10-01	215.000
1936-11-01	209.000
1936-12-01	236.000
1937-01-01	232.000
1937-02-01	225.000
1937-03-01	229.000
1937-04-01	245.000
1937-05-01	253.000
1937-06-01	269.000
1937-07-01	306.000
1937-08-01	336.000
1937-09-01	371.000
1937-10-01	391.000
1937-11-01	427.000
1937-12-01	473.000
1938-01-01	431.000
1938-02-01	387.000
1938-03-01	338.000
1938-04-01	314.000
1938-05-01	291.000
1938-06-01	269.000
1938-07-01	265.000
1938-08-01	270.000
1938-09-01	259.000
1938-10-01	259.000
1938-11-01	259.000
1938-12-01	243.000