Month	Millions Of Tons
1921-04-01	26.6800
1921-05-01	22.5300
1921-06-01	23.9800
1921-07-01	24.5900
1921-08-01	27.8700
1921-09-01	28.6600
1921-10-01	32.6600
1921-11-01	31.0500
1921-12-01	27.9200
1922-01-01	28.6900
1922-02-01	23.0800
1922-03-01	34.1600
1922-04-01	36.6100
1922-05-01	35.7800
1922-06-01	31.9800
1922-07-01	31.7700
1922-08-01	35.0900
1922-09-01	34.2400
1922-10-01	36.9400
1922-11-01	37.1100
1922-12-01	33.5600
1923-01-01	25.6000
1923-02-01	21.3400
1923-03-01	23.8800
1923-04-01	18.5800
1923-05-01	20.7500
1923-06-01	22.6200
1923-07-01	21.9400
1923-08-01	19.8600
1923-09-01	16.8700
1923-10-01	17.0600
1923-11-01	16.3800
1923-12-01	15.3800
1924-01-01	16.2000
1924-02-01	17.6300
1924-03-01	21.0600
1924-04-01	21.5000
1924-05-01	20.2800
1924-06-01	17.2900
1924-07-01	18.2600
1924-08-01	18.8400
1924-09-01	22.0000
1924-10-01	28.3700
1924-11-01	29.4300
1924-12-01	29.5900
1925-01-01	30.5200
1925-02-01	29.6000
1925-03-01	31.9800
1925-04-01	29.3000
1925-05-01	30.0300
1925-06-01	28.9400
1925-07-01	32.9000
1925-08-01	31.3200
1925-09-01	32.0700
1925-10-01	35.3500
1925-11-01	31.4600
1925-12-01	27.4400
1926-01-01	24.8100
1926-02-01	25.3600
1926-03-01	28.7200
1926-04-01	27.0700
1926-05-01	27.5300
1926-06-01	30.6300
1926-07-01	32.9500
1926-08-01	33.6800
1926-09-01	34.4400
1926-10-01	38.9600
1926-11-01	39.6900
1926-12-01	34.8800
1927-01-01	31.8900
1927-02-01	32.3100
1927-03-01	37.1900
1927-04-01	32.6400
1927-05-01	35.6600
1927-06-01	34.7800
1927-07-01	36.4200
1927-08-01	36.9000
1927-09-01	37.4400
1927-10-01	41.2200
1927-11-01	40.0000
1927-12-01	36.1800
1928-01-01	34.7900
1928-02-01	35.0500
1928-03-01	39.5400
1928-04-01	32.7000
1928-05-01	34.2400
1928-06-01	35.6800
1928-07-01	36.1000
1928-08-01	37.0800
1928-09-01	37.7800
1928-10-01	41.0900
1928-11-01	36.6800
1928-12-01	31.5300
1929-01-01	31.8400
1929-02-01	29.0400
1929-03-01	37.2600
1929-04-01	34.7400
1929-05-01	36.4100
1929-06-01	36.4500
1929-07-01	38.6700
1929-08-01	38.1300
1929-09-01	37.1600
1929-10-01	42.0400
1929-11-01	39.5000
1929-12-01	32.0500
1930-01-01	29.9700
1930-02-01	27.0900
1930-03-01	30.8200
1930-04-01	28.1000
1930-05-01	30.9200
1930-06-01	27.7400
1930-07-01	29.1400
1930-08-01	28.6200
1930-09-01	29.9100
1930-10-01	33.8500
1930-11-01	30.4800
1930-12-01	27.6900
1931-01-01	24.0500
1931-02-01	21.8600
1931-03-01	25.7200
1931-04-01	23.9900
1931-05-01	24.3800
1931-06-01	25.1100
1931-07-01	24.3800
1931-08-01	21.8700
1931-09-01	23.6300
1931-10-01	27.6900
1931-11-01	25.0500
1931-12-01	18.3400
1932-01-01	17.2700
1932-02-01	18.4000
1932-03-01	19.5800
1932-04-01	19.5200
1932-05-01	18.5000
1932-06-01	20.0000
1932-07-01	18.8600
1932-08-01	19.4100
1932-09-01	21.6800
1932-10-01	24.5100
1932-11-01	24.5100
1932-12-01	19.8000
1933-01-01	18.9300
1933-02-01	18.0200
1933-03-01	21.5800
1933-04-01	18.2200
1933-05-01	20.7100
1933-06-01	20.7000
1933-07-01	20.8500
1933-08-01	22.0000
1933-09-01	24.7800
1933-10-01	26.4300
1933-11-01	27.1100
1933-12-01	23.3600
1934-01-01	23.9800
1934-02-01	22.8000
1934-03-01	26.2600
1934-04-01	23.3600
1934-05-01	23.6900
1934-06-01	26.0400
1934-07-01	25.2200
1934-08-01	27.2200
1934-09-01	27.3300
1934-10-01	32.1800
1934-11-01	32.0300
1934-12-01	26.2800
1935-01-01	26.0300
1935-02-01	24.6900
1935-03-01	29.0200
1935-04-01	26.1800
1935-05-01	29.6000
1935-06-01	28.0500
1935-07-01	30.4800
1935-08-01	31.2300
1935-09-01	32.4000
1935-10-01	36.5800
1935-11-01	36.9500
1935-12-01	30.1500
1936-01-01	30.2200
1936-02-01	28.9400
1936-03-01	32.7600
1936-04-01	29.7100
1936-05-01	31.6200
1936-06-01	32.4300
1936-07-01	33.9000
1936-08-01	32.8200
1936-09-01	35.5900
1936-10-01	40.3600
1936-11-01	38.2100
1936-12-01	34.5200
1937-01-01	32.0200
1937-02-01	31.4900
1937-03-01	34.1300
1937-04-01	37.0100
1937-05-01	33.2100
1937-06-01	36.7500
1937-07-01	38.9800
1937-08-01	38.3800
1937-09-01	39.3000
1937-10-01	43.2200
1937-11-01	43.3300
1937-12-01	40.2200