Month Dollars Per Long Ton 1938-01-01 23.2500 1938-02-01 23.2500 1938-03-01 23.2500 1938-04-01 23.2500 1938-05-01 23.2500 1938-06-01 22.9800 1938-07-01 19.6100 1938-08-01 19.6100 1938-09-01 19.8200 1938-10-01 20.5700 1938-11-01 20.6100 1938-12-01 20.6100 1939-01-01 20.6100 1939-02-01 20.6100 1939-03-01 20.6100 1939-04-01 20.6100 1939-05-01 20.6100 1939-06-01 20.6100 1939-07-01 20.6100 1939-08-01 20.6100 1939-09-01 21.6100 1939-10-01 22.6100 1939-11-01 22.6100 1939-12-01 22.6100 1940-01-01 22.6100 1940-02-01 22.6100 1940-03-01 22.6100 1940-04-01 22.6100 1940-05-01 22.6100 1940-06-01 22.6100 1940-07-01 22.6100 1940-08-01 22.6100 1940-09-01 22.6100 1940-10-01 22.6100 1940-11-01 22.6100 1940-12-01 22.9500 1941-01-01 23.4500 1941-02-01 23.4500 1941-03-01 23.5300 1941-04-01 23.6100 1941-05-01 23.6100 1941-06-01 23.6100 1941-07-01 23.6100 1941-08-01 23.6100 1941-09-01 23.6100 1941-10-01 23.6100 1941-11-01 23.6100 1941-12-01 23.6100 1942-01-01 23.6100 1942-02-01 23.6100 1942-03-01 23.6100 1942-04-01 23.6100 1942-05-01 23.6100 1942-06-01 23.6100 1942-07-01 23.6100 1942-08-01 23.6100 1942-09-01 23.6100 1942-10-01 23.6100 1942-11-01 23.6100 1942-12-01 23.6100 1943-01-01 23.6100 1943-02-01 23.6100 1943-03-01 23.6100 1943-04-01 23.6100 1943-05-01 23.6100 1943-06-01 23.6100 1943-07-01 23.6100 1943-08-01 23.6100 1943-09-01 23.6100 1943-10-01 23.6100 1943-11-01 23.6100 1943-12-01 23.6100 1944-01-01 23.6100 1944-02-01 23.6100 1944-03-01 23.6100 1944-04-01 23.6100 1944-05-01 23.6100 1944-06-01 23.6100 1944-07-01 23.6100 1944-08-01 23.6100 1944-09-01 23.6100 1944-10-01 23.6100 1944-11-01 23.6100 1944-12-01 23.6100 1945-01-01 23.6100 1945-02-01 24.1100 1945-03-01 24.6100 1945-04-01 24.6100 1945-05-01 24.6100 1945-06-01 24.6100 1945-07-01 24.6100 1945-08-01 24.6100 1945-09-01 24.6100 1945-10-01 24.9100 1945-11-01 25.3700 1945-12-01 25.3700 1946-01-01 25.3700 1946-02-01 25.3700 1946-03-01 25.7500 1946-04-01 26.1200 1946-05-01 26.4500 1946-06-01 28.1300 1946-07-01 28.1300 1946-08-01 28.1300 1946-09-01 28.1300 1946-10-01 28.1300 1946-11-01 28.1300 1946-12-01 29.6400 1947-01-01 30.1400 1947-02-01 30.1500 1947-03-01 32.9200 1947-04-01 33.1500 1947-05-01 33.1500 1947-06-01 33.1500 1947-07-01 34.5200 1947-08-01 36.8400 1947-09-01 36.9500 1947-10-01 36.9500 1947-11-01 37.0400 1947-12-01 37.2400 1948-01-01 39.8300 1948-02-01 40.2700 1948-03-01 40.3200 1948-04-01 40.1100 1948-05-01 40.3300 1948-06-01 40.5100 1948-07-01 42.2500 1948-08-01 44.3400 1948-09-01 44.9600 1948-10-01 46.6300 1948-11-01 48.8400 1948-12-01 48.9100 1949-01-01 46.7900 1949-02-01 46.7400 1949-03-01 46.7400 1949-04-01 46.6400 1949-05-01 45.9700 1949-06-01 45.9100 1949-07-01 45.9100 1949-08-01 45.9100 1949-09-01 45.9000 1949-10-01 45.8800 1949-11-01 45.8800 1949-12-01 45.8800 1950-01-01 45.9800 1950-02-01 46.3800 1950-03-01 46.3800 1950-04-01 46.3800 1950-05-01 46.3800 1950-06-01 46.3800 1950-07-01 46.3800 1950-08-01 46.5600 1950-09-01 47.1600 1950-10-01 49.2900 1950-11-01 49.6900 1950-12-01 52.5000 1951-01-01 52.6900 1951-02-01 52.6900 1951-03-01 52.6900 1951-04-01 52.6900 1951-05-01 52.6900 1951-06-01 52.6900 1951-07-01 52.6900 1951-08-01 52.6900 1951-09-01 52.6900 1951-10-01 52.7200 1951-11-01 52.7200 1951-12-01 52.7200 1952-01-01 52.7200 1952-02-01 52.7200 1952-03-01 52.7200 1952-04-01 52.7200 1952-05-01 52.7700 1952-06-01 52.7700 1952-07-01 53.2700 1952-08-01 55.2600 1952-09-01 55.2600 1952-10-01 55.2600 1952-11-01 55.2600 1952-12-01 55.2600 1953-01-01 55.2600 1953-02-01 55.2600 1953-03-01 55.2600 1953-04-01 55.2600 1953-05-01 55.2600 1953-06-01 55.3200 1953-07-01 56.7300 1953-08-01 56.7600 1953-09-01 56.6600 1953-10-01 56.5900 1953-11-01 56.5900 1953-12-01 56.5900 1954-01-01 56.5900 1954-02-01 56.5900 1954-03-01 56.5900 1954-04-01 56.5900 1954-05-01 56.5900 1954-06-01 56.5900 1954-07-01 56.5900 1954-08-01 56.5900 1954-09-01 56.5900 1954-10-01 56.5900 1954-11-01 56.5900 1954-12-01 56.5900 1955-01-01 56.5900 1955-02-01 56.5900 1955-03-01 56.5900 1955-04-01 56.5900 1955-05-01 56.5900 1955-06-01 56.5900 1955-07-01 58.4600 1955-08-01 59.0900 1955-09-01 59.0900 1955-10-01 59.0900 1955-11-01 59.0900 1955-12-01 59.0900 1956-01-01 59.0900 1956-02-01 59.0900 1956-03-01 59.2500 1956-04-01 60.2900 1956-05-01 60.2900 1956-06-01 60.2900 1956-07-01 60.3300 1956-08-01 63.0200 1956-09-01 63.0400 1956-10-01 63.0400 1956-11-01 63.0400 1956-12-01 63.0400 1957-01-01 62.9000 1957-02-01 62.9000 1957-03-01 64.5600 1957-04-01 64.5600 1957-05-01 64.5600 1957-06-01 64.5600 1957-07-01 65.3700 1957-08-01 66.4000 1957-09-01 66.4200 1957-10-01 66.4200 1957-11-01 66.4200 1957-12-01 66.4200 1958-01-01 66.4200 1958-02-01 66.4600 1958-03-01 66.4900 1958-04-01 66.4900