Month Percent 1941-10-01 2.34000 1941-11-01 2.34000 1941-12-01 2.47000 1942-01-01 2.48000 1942-02-01 2.48000 1942-03-01 2.46000 1942-04-01 2.44000 1942-05-01 2.45000 1942-06-01 2.43000 1942-07-01 2.46000 1942-08-01 2.47000 1942-09-01 2.46000 1942-10-01 2.45000 1942-11-01 2.47000 1942-12-01 2.49000 1943-01-01 2.46000 1943-02-01 2.46000 1943-03-01 2.48000 1943-04-01 2.48000 1943-05-01 2.46000 1943-06-01 2.45000 1943-07-01 2.45000 1943-08-01 2.46000 1943-09-01 2.48000 1943-10-01 2.48000 1943-11-01 2.48000 1943-12-01 2.49000 1944-01-01 2.49000 1944-02-01 2.49000 1944-03-01 2.48000 1944-04-01 2.48000 1944-05-01 2.49000 1944-06-01 2.49000 1944-07-01 2.49000 1944-08-01 2.48000 1944-09-01 2.47000 1944-10-01 2.48000 1944-11-01 2.48000 1944-12-01 2.48000 1945-01-01 2.44000 1945-02-01 2.38000 1945-03-01 2.40000 1945-04-01 2.39000 1945-05-01 2.39000 1945-06-01 2.35000 1945-07-01 2.34000 1945-08-01 2.36000 1945-09-01 2.37000 1945-10-01 2.35000 1945-11-01 2.33000 1945-12-01 2.33000 1946-01-01 2.21000 1946-02-01 2.12000 1946-03-01 2.09000 1946-04-01 2.08000 1946-05-01 2.19000 1946-06-01 2.16000 1946-07-01 2.18000 1946-08-01 2.23000 1946-09-01 2.28000 1946-10-01 2.26000 1946-11-01 2.25000 1946-12-01 2.24000 1947-01-01 2.21000 1947-02-01 2.21000 1947-03-01 2.19000 1947-04-01 2.19000 1947-05-01 2.19000 1947-06-01 2.22000 1947-07-01 2.25000 1947-08-01 2.24000 1947-09-01 2.24000 1947-10-01 2.27000 1947-11-01 2.36000 1947-12-01 2.39000 1948-01-01 2.45000 1948-02-01 2.45000 1948-03-01 2.44000 1948-04-01 2.44000 1948-05-01 2.42000 1948-06-01 2.41000 1948-07-01 2.44000 1948-08-01 2.45000 1948-09-01 2.45000 1948-10-01 2.45000 1948-11-01 2.44000 1948-12-01 2.44000 1949-01-01 2.42000 1949-02-01 2.39000 1949-03-01 2.38000 1949-04-01 2.38000 1949-05-01 2.38000 1949-06-01 2.38000 1949-07-01 2.27000 1949-08-01 2.24000 1949-09-01 2.22000 1949-10-01 2.22000 1949-11-01 2.20000 1949-12-01 2.19000 1950-01-01 2.20000 1950-02-01 2.24000 1950-03-01 2.27000 1950-04-01 2.30000 1950-05-01 2.31000 1950-06-01 2.33000 1950-07-01 2.34000 1950-08-01 2.33000 1950-09-01 2.36000 1950-10-01 2.38000 1950-11-01 2.38000 1950-12-01 2.39000 1951-01-01 2.39000 1951-02-01 2.40000 1951-03-01 2.47000 1951-04-01 2.56000 1951-05-01 2.63000 1951-06-01 2.65000 1951-07-01 2.63000 1951-08-01 2.57000 1951-09-01 2.56000 1951-10-01 2.61000 1951-11-01 2.66000 1951-12-01 2.70000 1952-01-01 2.74000 1952-02-01 2.71000 1952-03-01 2.70000 1952-04-01 2.64000 1952-05-01 2.57000 1952-06-01 2.61000 1952-07-01 2.61000 1952-08-01 2.70000 1952-09-01 2.71000 1952-10-01 2.74000 1952-11-01 2.71000 1952-12-01 2.75000 1953-01-01 2.80000 1953-02-01 2.83000 1953-03-01 2.89000 1953-04-01 2.97000 1953-05-01 3.11000 1953-06-01 3.13000 1953-07-01 3.02000 1953-08-01 3.02000 1953-09-01 2.98000 1953-10-01 2.83000 1953-11-01 2.86000 1953-12-01 2.79000 1954-01-01 2.69000 1954-02-01 2.62000 1954-03-01 2.53000 1954-04-01 2.48000 1954-05-01 2.54000 1954-06-01 2.55000 1954-07-01 2.47000 1954-08-01 2.48000 1954-09-01 2.52000 1954-10-01 2.54000 1954-11-01 2.57000 1954-12-01 2.59000 1955-01-01 2.68000 1955-02-01 2.78000 1955-03-01 2.78000 1955-04-01 2.82000 1955-05-01 2.81000 1955-06-01 2.82000 1955-07-01 2.91000 1955-08-01 2.95000 1955-09-01 2.92000 1955-10-01 2.87000 1955-11-01 2.89000 1955-12-01 2.91000 1956-01-01 2.88000 1956-02-01 2.85000 1956-03-01 2.93000 1956-04-01 3.07000 1956-05-01 2.97000 1956-06-01 2.93000 1956-07-01 3.00000 1956-08-01 3.17000 1956-09-01 3.21000 1956-10-01 3.20000 1956-11-01 3.30000 1956-12-01 3.40000 1957-01-01 3.34000 1957-02-01 3.22000 1957-03-01 3.26000 1957-04-01 3.32000 1957-05-01 3.40000 1957-06-01 3.58000 1957-07-01 3.60000 1957-08-01 3.63000 1957-09-01 3.66000 1957-10-01 3.73000 1957-11-01 3.57000 1957-12-01 3.30000 1958-01-01 3.24000 1958-02-01 3.28000 1958-03-01 3.25000 1958-04-01 3.12000 1958-05-01 3.14000 1958-06-01 3.20000 1958-07-01 3.36000 1958-08-01 3.60000 1958-09-01 3.75000 1958-10-01 3.76000 1958-11-01 3.70000 1958-12-01 3.80000 1959-01-01 3.91000 1959-02-01 3.92000 1959-03-01 3.92000 1959-04-01 4.01000 1959-05-01 4.08000 1959-06-01 4.09000 1959-07-01 4.11000 1959-08-01 4.10000 1959-09-01 4.26000 1959-10-01 4.11000 1959-11-01 4.12000 1959-12-01 4.27000 1960-01-01 4.37000 1960-02-01 4.22000 1960-03-01 4.08000 1960-04-01 4.18000 1960-05-01 4.16000 1960-06-01 3.98000 1960-07-01 3.86000 1960-08-01 3.79000 1960-09-01 3.84000 1960-10-01 3.91000 1960-11-01 3.93000 1960-12-01 3.88000 1961-01-01 3.89000 1961-02-01 3.81000 1961-03-01 3.78000 1961-04-01 3.80000 1961-05-01 3.73000 1961-06-01 3.88000 1961-07-01 3.90000 1961-08-01 4.00000 1961-09-01 4.02000 1961-10-01 3.98000 1961-11-01 3.98000 1961-12-01 4.06000 1962-01-01 4.08000 1962-02-01 4.09000 1962-03-01 4.01000 1962-04-01 3.89000 1962-05-01 3.88000 1962-06-01 3.90000 1962-07-01 4.02000 1962-08-01 3.97000 1962-09-01 3.94000 1962-10-01 3.89000 1962-11-01 3.87000 1962-12-01 3.87000 1963-01-01 3.88000 1963-02-01 3.92000 1963-03-01 3.93000 1963-04-01 3.97000 1963-05-01 3.97000 1963-06-01 4.00000 1963-07-01 4.01000 1963-08-01 3.99000 1963-09-01 4.04000 1963-10-01 4.07000 1963-11-01 4.10000 1963-12-01 4.14000 1964-01-01 4.15000 1964-02-01 4.14000 1964-03-01 4.18000 1964-04-01 4.20000 1964-05-01 4.16000 1964-06-01 4.13000 1964-07-01 4.13000 1964-08-01 4.14000 1964-09-01 4.16000 1964-10-01 4.16000 1964-11-01 4.12000 1964-12-01 4.14000 1965-01-01 4.14000 1965-02-01 4.16000 1965-03-01 4.15000 1965-04-01 4.15000 1965-05-01 4.14000 1965-06-01 4.14000 1965-07-01 4.15000 1965-08-01 4.19000 1965-09-01 4.25000 1965-10-01 4.27000 1965-11-01 4.34000 1965-12-01 4.43000 1966-01-01 4.43000 1966-02-01 4.61000 1966-03-01 4.63000 1966-04-01 4.55000 1966-05-01 4.57000 1966-06-01 4.63000 1966-07-01 4.75000 1966-08-01 4.80000 1966-09-01 4.79000 1966-10-01 4.70000 1966-11-01 4.74000 1966-12-01 4.65000 1967-01-01 4.40000 1967-02-01 4.47000 1967-03-01 4.45000 1967-04-01 4.51000 1967-05-01 4.76000 1967-06-01 4.86000 1967-07-01 4.86000 1967-08-01 4.95000 1967-09-01 4.99000 1967-10-01 5.18000 1967-11-01 5.44000 1967-12-01 5.36000