Month Cents Per Pound 1947-01-01 4.25000 1947-02-01 4.25000 1947-03-01 4.25000 1947-04-01 4.45000 1947-05-01 4.45000 1947-06-01 4.45000 1947-07-01 4.47000 1947-08-01 4.52000 1947-09-01 4.52000 1947-10-01 4.52000 1947-11-01 4.52000 1947-12-01 4.52000 1948-01-01 4.67000 1948-02-01 4.74000 1948-03-01 4.81000 1948-04-01 4.81000 1948-05-01 4.81000 1948-06-01 4.81000 1948-07-01 4.81000 1948-08-01 4.95000 1948-09-01 5.00000 1948-10-01 5.00000 1948-11-01 5.05000 1948-12-01 5.05000 1949-01-01 5.05000 1949-02-01 5.05000 1949-03-01 5.05000 1949-04-01 5.05000 1949-05-01 5.05000 1949-06-01 5.05000 1949-07-01 5.05000 1949-08-01 5.05000 1949-09-01 5.05000 1949-10-01 5.05000 1949-11-01 5.05000 1949-12-01 5.05000 1950-01-01 5.05000 1950-02-01 5.05000 1950-03-01 5.05000 1950-04-01 5.05000 1950-05-01 5.05000 1950-06-01 5.05000 1950-07-01 5.05000 1950-08-01 5.05000 1950-09-01 5.05000 1950-10-01 5.05000 1950-11-01 5.20000 1950-12-01 5.28000 1951-01-01 5.34000 1951-02-01 5.34000 1951-03-01 5.34000 1951-04-01 5.34000 1951-05-01 5.34000 1951-06-01 5.34000 1951-07-01 5.46000 1951-08-01 5.59000 1951-09-01 5.71000 1951-10-01 5.84000 1951-11-01 5.84000 1951-12-01 5.84000 1952-01-01 5.84000 1952-02-01 5.84000 1952-03-01 5.84000 1952-04-01 5.85000 1952-05-01 5.85000 1952-06-01 5.98000 1952-07-01 5.98000 1952-08-01 6.10000 1952-09-01 6.10000 1952-10-01 6.26000 1952-11-01 6.26000 1952-12-01 6.26000 1953-01-01 6.26000 1953-02-01 6.26000 1953-03-01 6.26000 1953-04-01 6.26000 1953-05-01 6.26000 1953-06-01 6.26000 1953-07-01 6.29000 1953-08-01 6.29000 1953-09-01 6.29000 1953-10-01 6.29000 1953-11-01 6.29000 1953-12-01 6.29000 1954-01-01 6.29000 1954-02-01 6.29000 1954-03-01 6.29000 1954-04-01 6.29000 1954-05-01 6.29000 1954-06-01 6.29000 1954-07-01 6.29000 1954-08-01 6.29000 1954-09-01 6.29000 1954-10-01 6.29000 1954-11-01 6.29000 1954-12-01 6.29000 1955-01-01 6.29000 1955-02-01 6.29000 1955-03-01 6.29000 1955-04-01 6.29000 1955-05-01 6.29000 1955-06-01 6.29000 1955-07-01 6.29000 1955-08-01 6.29000 1955-09-01 6.29000 1955-10-01 6.29000 1955-11-01 6.34000 1955-12-01 6.35000 1956-01-01 6.45000 1956-02-01 6.50000 1956-03-01 6.50000 1956-04-01 6.50000 1956-05-01 6.50000 1956-06-01 6.50000 1956-07-01 6.50000 1956-08-01 6.50000 1956-09-01 6.50000 1956-10-01 6.50000 1956-11-01 6.50000 1956-12-01 6.50000 1957-01-01 6.50000 1957-02-01 6.50000 1957-03-01 6.66000 1957-04-01 6.72000 1957-05-01 6.72000 1957-06-01 6.72000 1957-07-01 6.72000 1957-08-01 6.72000 1957-09-01 6.72000 1957-10-01 6.72000 1957-11-01 6.72000 1957-12-01 6.72000 1958-01-01 6.72000 1958-02-01 6.72000