Month Dollars Per Hundred Pounds 1953-05-01 8.43000 1953-06-01 8.43000 1953-07-01 8.43000 1953-08-01 8.43000 1953-09-01 8.43000 1953-10-01 8.43000 1953-11-01 8.43000 1953-12-01 8.43000 1954-01-01 8.43000 1954-02-01 8.43000 1954-03-01 8.43000 1954-04-01 8.43000 1954-05-01 8.43000 1954-06-01 8.43000 1954-07-01 8.43000 1954-08-01 8.43000 1954-09-01 8.43000 1954-10-01 8.53000 1954-11-01 8.53000 1954-12-01 8.53000 1955-01-01 8.53000 1955-02-01 8.53000 1955-03-01 8.53000 1955-04-01 8.53000 1955-05-01 8.53000 1955-06-01 8.53000 1955-07-01 8.53000 1955-08-01 8.53000 1955-09-01 8.53000 1955-10-01 8.93000 1955-11-01 8.93000 1955-12-01 8.93000 1956-01-01 8.93000 1956-02-01 8.93000 1956-03-01 8.93000 1956-04-01 8.93000 1956-05-01 9.33000 1956-06-01 9.33000 1956-07-01 9.33000 1956-08-01 9.33000 1956-09-01 9.33000 1956-10-01 9.33000 1956-11-01 9.43000 1956-12-01 9.43000 1957-01-01 9.43000 1957-02-01 9.43000 1957-03-01 9.43000 1957-04-01 9.43000 1957-05-01 9.78000 1957-06-01 9.78000 1957-07-01 9.78000 1957-08-01 9.78000 1957-09-01 9.78000 1957-10-01 9.78000 1957-11-01 9.78000 1957-12-01 9.78000 1958-01-01 9.78000 1958-02-01 9.78000