Month Thousands Of Tons 1920-01-01 18.8000 1920-02-01 15.0000 1920-03-01 27.5000 1920-04-01 18.3000 1920-05-01 31.2000 1920-06-01 19.8000 1920-07-01 42.1000 1920-08-01 24.6000 1920-09-01 34.4000 1920-10-01 26.5000 1920-11-01 32.1000 1920-12-01 21.5000 1921-01-01 40.9000 1921-02-01 29.9000 1921-03-01 28.2000 1921-04-01 42.6000 1921-05-01 16.9000 1921-06-01 7.20000 1921-07-01 7.30000 1921-08-01 14.0000 1921-09-01 30.2000 1921-10-01 28.4000 1921-11-01 46.7000 1921-12-01 47.3000 1922-01-01 57.1000 1922-02-01 33.6000 1922-03-01 68.1000 1922-04-01 54.8000 1922-05-01 42.3000 1922-06-01 24.0000 1922-07-01 27.1000 1922-08-01 37.9000 1922-09-01 28.3000 1922-10-01 32.7000 1922-11-01 37.9000 1922-12-01 35.7000 1923-01-01 26.7000 1923-02-01 28.7000 1923-03-01 36.1000 1923-04-01 53.9000 1923-05-01 44.2000 1923-06-01 42.7000 1923-07-01 36.5000 1923-08-01 29.6000 1923-09-01 58.4000 1923-10-01 38.3000 1923-11-01 46.9000 1923-12-01 51.4000 1924-01-01 43.7000 1924-02-01 46.8000 1924-03-01 30.3000 1924-04-01 37.0000 1924-05-01 39.8000 1924-06-01 27.1000 1924-07-01 23.1000 1924-08-01 25.9000 1924-09-01 17.8000 1924-10-01 27.8000 1924-11-01 26.0000 1924-12-01 26.3000 1925-01-01 38.7000 1925-02-01 25.6000 1925-03-01 31.5000 1925-04-01 32.1000 1925-05-01 38.5000 1925-06-01 27.4000 1925-07-01 37.0000 1925-08-01 37.3000 1925-09-01 32.0000 1925-10-01 47.5000 1925-11-01 33.8000 1925-12-01 39.3000 1926-01-01 36.9000 1926-02-01 34.8000 1926-03-01 49.5000 1926-04-01 43.2000 1926-05-01 42.1000 1926-06-01 41.1000 1926-07-01 19.5000 1926-08-01 8.50000 1926-09-01 8.40000 1926-10-01 8.10000 1926-11-01 8.00000 1926-12-01 5.70000 1927-01-01 10.1000 1927-02-01 25.3000 1927-03-01 46.7000 1927-04-01 51.9000 1927-05-01 73.6000 1927-06-01 63.0000 1927-07-01 81.5000 1927-08-01 70.7000 1927-09-01 79.1000 1927-10-01 83.4000 1927-11-01 76.2000 1927-12-01 68.3000 1928-01-01 63.8000 1928-02-01 54.2000 1928-03-01 71.4000 1928-04-01 68.5000 1928-05-01 41.2000 1928-06-01 46.4000 1928-07-01 50.7000 1928-08-01 46.3000 1928-09-01 44.2000 1928-10-01 35.1000 1928-11-01 54.3000 1928-12-01 34.3000 1929-01-01 51.6000 1929-02-01 48.5000 1929-03-01 34.2000 1929-04-01 35.2000 1929-05-01 46.2000 1929-06-01 32.9000 1929-07-01 37.8000 1929-08-01 43.5000 1929-09-01 27.8000 1929-10-01 48.4000 1929-11-01 42.9000 1929-12-01 37.7000 1930-01-01 43.6000 1930-02-01 36.7000 1930-03-01 46.8000 1930-04-01 34.2000 1930-05-01 32.1000 1930-06-01 40.7000 1930-07-01 44.2000 1930-08-01 24.5000 1930-09-01 34.9000 1930-10-01 25.4000 1930-11-01 16.3000 1930-12-01 10.0000 1931-01-01 10.7000 1931-02-01 9.70000 1931-03-01 26.7000 1931-04-01 36.5000 1931-05-01 13.9000 1931-06-01 16.1000 1931-07-01 13.3000 1931-08-01 13.1000 1931-09-01 13.0000 1931-10-01 12.5000 1931-11-01 21.9000 1931-12-01 18.6000 1932-01-01 10.0000 1932-02-01 4.50000 1932-03-01 5.10000 1932-04-01 10.2000 1932-05-01 11.6000 1932-06-01 7.00000 1932-07-01 8.40000 1932-08-01 5.80000 1932-09-01 6.30000 1932-10-01 11.8000 1932-11-01 12.1000 1932-12-01 13.0000 1933-01-01 6.10000 1933-02-01 3.20000 1933-03-01 6.40000 1933-04-01 8.60000 1933-05-01 21.2000 1933-06-01 15.1000 1933-07-01 7.80000 1933-08-01 8.00000 1933-09-01 8.40000 1933-10-01 9.20000 1933-11-01 9.40000 1933-12-01 6.90000 1934-01-01 8.40000 1934-02-01 6.50000 1934-03-01 8.10000 1934-04-01 4.50000 1934-05-01 17.8000 1934-06-01 29.3000 1934-07-01 19.5000 1934-08-01 30.2000 1934-09-01 23.7000 1934-10-01 16.0000 1934-11-01 15.5000 1934-12-01 10.4000 1935-01-01 12.6000 1935-02-01 15.5000 1935-03-01 11.3000 1935-04-01 14.2000 1935-05-01 11.6000 1935-06-01 18.7000 1935-07-01 28.2000 1935-08-01 29.0000 1935-09-01 20.4000 1935-10-01 20.3000 1935-11-01 22.2000 1935-12-01 13.7000 1936-01-01 9.60000 1936-02-01 17.0000 1936-03-01 13.6000 1936-04-01 20.4000 1936-05-01 22.9000 1936-06-01 29.5000 1936-07-01 33.5000 1936-08-01 23.1000 1936-09-01 10.6000 1936-10-01 16.4000 1936-11-01 15.3000 1936-12-01 28.4000 1937-01-01 20.1000 1937-02-01 10.2000 1937-03-01 10.9000 1937-04-01 13.9000 1937-05-01 19.9000 1937-06-01 31.5000