Month	Thousands Of Long Tons
1919-01-01	637.000
1919-02-01	607.000
1919-03-01	637.000
1919-04-01	511.000
1919-05-01	437.000
1919-06-01	369.000
1919-07-01	405.000
1919-08-01	466.000
1919-09-01	482.000
1919-10-01	424.000
1919-11-01	507.000
1919-12-01	560.000
1920-01-01	624.000
1920-02-01	624.000
1920-03-01	682.000
1920-04-01	611.000
1920-05-01	648.000
1920-06-01	556.000
1920-07-01	557.000
1920-08-01	601.000
1920-09-01	585.000
1920-10-01	589.000
1920-11-01	521.000
1920-12-01	435.000
1921-01-01	296.000
1921-02-01	205.000
1921-03-01	166.000
1921-04-01	153.000
1921-05-01	149.000
1921-06-01	136.000
1921-07-01	121.000
1921-08-01	99.0000
1921-09-01	108.000
1921-10-01	144.000
1921-11-01	203.000
1921-12-01	240.000
1922-01-01	229.000
1922-02-01	193.000
1922-03-01	253.000
1922-04-01	247.000
1922-05-01	250.000
1922-06-01	283.000
1922-07-01	252.000
1922-08-01	192.000
1922-09-01	221.000
1922-10-01	301.000
1922-11-01	386.000
1922-12-01	428.000
1923-01-01	459.000
1923-02-01	437.000
1923-03-01	503.000
1923-04-01	533.000
1923-05-01	600.000
1923-06-01	573.000
1923-07-01	554.000
1923-08-01	500.000
1923-09-01	456.000
1923-10-01	458.000
1923-11-01	431.000
1923-12-01	423.000
1924-01-01	429.000
1924-02-01	422.000
1924-03-01	467.000
1924-04-01	454.000
1924-05-01	396.000
1924-06-01	313.000
1924-07-01	267.000
1924-08-01	257.000
1924-09-01	275.000
1924-10-01	321.000
1924-11-01	321.000
1924-12-01	376.000
1925-01-01	417.000
1925-02-01	414.000
1925-03-01	441.000
1925-04-01	396.000
1925-05-01	361.000
1925-06-01	330.000
1925-07-01	322.000
1925-08-01	312.000
1925-09-01	307.000
1925-10-01	344.000
1925-11-01	357.000
1925-12-01	381.000
1926-01-01	410.000
1926-02-01	326.000
1926-03-01	398.000
1926-04-01	424.000
1926-05-01	451.000
1926-06-01	418.000
1926-07-01	412.000
1926-08-01	375.000
1926-09-01	374.000
1926-10-01	386.000
1926-11-01	384.000
1926-12-01	380.000