Month	Thousands Of Short Tons
1919-01-01	188.200
1919-02-01	195.500
1919-03-01	192.900
1919-04-01	177.700
1919-05-01	165.700
1919-06-01	145.800
1919-07-01	146.500
1919-08-01	141.600
1919-09-01	140.000
1919-10-01	133.500
1919-11-01	119.900
1919-12-01	115.000
1920-01-01	107.800
1920-02-01	100.900
1920-03-01	96.8000
1920-04-01	105.900
1920-05-01	111.300
1920-06-01	129.300
1920-07-01	150.100
1920-08-01	173.900
1920-09-01	188.800
1920-10-01	184.100
1920-11-01	188.800
1920-12-01	198.900
1921-01-01	202.000
1921-02-01	206.600
1921-03-01	211.900
1921-04-01	214.000
1921-05-01	193.400
1921-06-01	166.200
1921-07-01	169.100
1921-08-01	186.900
1921-09-01	187.900
1921-10-01	179.800
1921-11-01	178.400
1921-12-01	169.300
1922-01-01	163.500
1922-02-01	173.500
1922-03-01	167.500
1922-04-01	151.600
1922-05-01	150.400
1922-06-01	166.400
1922-07-01	171.400
1922-08-01	193.600
1922-09-01	193.800
1922-10-01	179.300
1922-11-01	176.200
1922-12-01	166.100
1923-01-01	172.300
1923-02-01	171.800
1923-03-01	163.600
1923-04-01	165.500
1923-05-01	176.300