Month	Percent
1937-01-01	2.18000
1937-02-01	2.39000
1937-03-01	2.59000
1937-04-01	2.81000
1937-05-01	2.68000
1937-06-01	2.55000
1937-07-01	2.46000
1937-08-01	2.45000
1937-09-01	2.49000
1937-10-01	2.60000
1937-11-01	2.50000
1937-12-01	2.50000
1938-01-01	2.45000
1938-02-01	2.30000
1938-03-01	2.32000
1938-04-01	2.42000
1938-05-01	2.27000
1938-06-01	2.21000
1938-07-01	2.18000
1938-08-01	2.17000
1938-09-01	2.14000
1938-10-01	2.18000
1938-11-01	2.18000
1938-12-01	2.18000
1939-01-01	2.14000
1939-02-01	2.06000
1939-03-01	2.04000
1939-04-01	2.05000
1939-05-01	2.02000
1939-06-01	2.00000
1939-07-01	1.99000
1939-08-01	2.10000
1939-09-01	2.26000
1939-10-01	2.32000
1939-11-01	2.06000
1939-12-01	1.90000
1940-01-01	1.90000
1940-02-01	1.93000
1940-03-01	1.88000
1940-04-01	1.86000
1940-05-01	2.05000
1940-06-01	2.06000
1940-07-01	1.84000
1940-08-01	1.80000
1940-09-01	1.78000
1940-10-01	1.70000
1940-11-01	1.64000
1940-12-01	1.56000
1941-01-01	1.59000
1941-02-01	1.65000
1941-03-01	1.71000
1941-04-01	1.67000
1941-05-01	1.60000
1941-06-01	1.52000
1941-07-01	1.48000
1941-08-01	1.44000
1941-09-01	1.43000
1941-10-01	1.39000
1941-11-01	1.39000
1941-12-01	1.55000
1942-01-01	1.63000
1942-02-01	1.78000
1942-03-01	1.84000
1942-04-01	1.79000
1942-05-01	1.74000
1942-06-01	1.67000
1942-07-01	1.58000
1942-08-01	1.54000
1942-09-01	1.56000
1942-10-01	1.57000
1942-11-01	1.58000
1942-12-01	1.59000
1943-01-01	1.56000
1943-02-01	1.54000
1943-03-01	1.53000
1943-04-01	1.48000
1943-05-01	1.43000
1943-06-01	1.38000
1943-07-01	1.34000
1943-08-01	1.33000
1943-09-01	1.31000
1943-10-01	1.25000
1943-11-01	1.26000
1943-12-01	1.27000
1944-01-01	1.21000
1944-02-01	1.17000
1944-03-01	1.16000
1944-04-01	1.17000
1944-05-01	1.17000
1944-06-01	1.16000
1944-07-01	1.15000
1944-08-01	1.14000
1944-09-01	1.15000
1944-10-01	1.16000
1944-11-01	1.16000
1944-12-01	1.15000
1945-01-01	1.09000
1945-02-01	1.02000
1945-03-01	0.960000
1945-04-01	0.950000
1945-05-01	0.980000
1945-06-01	1.01000
1945-07-01	1.02000
1945-08-01	1.13000
1945-09-01	1.22000
1945-10-01	1.21000
1945-11-01	1.16000
1945-12-01	1.11000
1946-01-01	1.02000
1946-02-01	0.940000
1946-03-01	0.920000
1946-04-01	0.910000
1946-05-01	1.02000
1946-06-01	1.04000
1946-07-01	1.09000
1946-08-01	1.16000
1946-09-01	1.21000
1946-10-01	1.24000
1946-11-01	1.23000
1946-12-01	1.38000
1947-01-01	1.35000
1947-02-01	1.39000
1947-03-01	1.46000
1947-04-01	1.41000
1947-05-01	1.42000
1947-06-01	1.40000
1947-07-01	1.39000
1947-08-01	1.43000
1947-09-01	1.42000
1947-10-01	1.50000
1947-11-01	1.59000
1947-12-01	1.69000
1948-01-01	1.76000
1948-02-01	1.88000
1948-03-01	1.96000
1948-04-01	1.92000
1948-05-01	1.87000
1948-06-01	1.81000
1948-07-01	1.85000
1948-08-01	1.90000
1948-09-01	1.93000
1948-10-01	1.93000
1948-11-01	1.86000
1948-12-01	1.75000
1949-01-01	1.64000
1949-02-01	1.70000
1949-03-01	1.69000
1949-04-01	1.64000
1949-05-01	1.63000
1949-06-01	1.71000
1949-07-01	1.66000
1949-08-01	1.63000
1949-09-01	1.64000
1949-10-01	1.65000
1949-11-01	1.63000
1949-12-01	1.61000
1950-01-01	1.61000
1950-02-01	1.61000
1950-03-01	1.62000
1950-04-01	1.63000
1950-05-01	1.65000
1950-06-01	1.66000
1950-07-01	1.66000
1950-08-01	1.52000
1950-09-01	1.50000
1950-10-01	1.44000
1950-11-01	1.42000
1950-12-01	1.42000
1951-01-01	1.31000
1951-02-01	1.30000
1951-03-01	1.45000
1951-04-01	1.61000
1951-05-01	1.66000
1951-06-01	1.78000
1951-07-01	1.78000
1951-08-01	1.65000
1951-09-01	1.65000
1951-10-01	1.69000
1951-11-01	1.69000
1951-12-01	1.72000
1952-01-01	1.74000
1952-02-01	1.72000
1952-03-01	1.72000
1952-04-01	1.68000
1952-05-01	1.67000
1952-06-01	1.73000
1952-07-01	1.76000
1952-08-01	1.78000
1952-09-01	1.91000
1952-10-01	1.99000
1952-11-01	1.98000
1952-12-01	1.96000
1953-01-01	2.04000
1953-02-01	2.14000
1953-03-01	2.21000
1953-04-01	2.20000
1953-05-01	2.32000
1953-06-01	2.64000
1953-07-01	2.56000
1953-08-01	2.48000
1953-09-01	2.49000
1953-10-01	2.33000
1953-11-01	2.15000
1953-12-01	2.18000
1954-01-01	2.12000
1954-02-01	2.06000
1954-03-01	2.04000
1954-04-01	2.15000
1954-05-01	2.18000
1954-06-01	2.17000
1954-07-01	1.98000
1954-08-01	1.90000
1954-09-01	1.93000
1954-10-01	1.97000
1954-11-01	1.95000
1954-12-01	2.01000
1955-01-01	2.09000
1955-02-01	2.10000
1955-03-01	2.09000
1955-04-01	2.08000
1955-05-01	2.06000
1955-06-01	2.09000
1955-07-01	2.23000
1955-08-01	2.33000
1955-09-01	2.31000
1955-10-01	2.25000
1955-11-01	2.20000
1955-12-01	2.29000
1956-01-01	2.27000
1956-02-01	2.19000
1956-03-01	2.24000
1956-04-01	2.43000
1956-05-01	2.46000
1956-06-01	2.34000
1956-07-01	2.40000
1956-08-01	2.53000
1956-09-01	2.63000
1956-10-01	2.66000
1956-11-01	2.87000
1956-12-01	3.04000
1957-01-01	2.99000
1957-02-01	2.79000
1957-03-01	2.88000
1957-04-01	2.88000
1957-05-01	3.00000
1957-06-01	3.19000
1957-07-01	3.17000
1957-08-01	3.37000
1957-09-01	3.43000
1957-10-01	3.31000
1957-11-01	3.24000
1957-12-01	2.92000
1958-01-01	2.75000
1958-02-01	2.72000
1958-03-01	2.79000
1958-04-01	2.70000
1958-05-01	2.69000
1958-06-01	2.74000
1958-07-01	2.79000
1958-08-01	3.07000
1958-09-01	3.28000
1958-10-01	3.23000
1958-11-01	3.17000
1958-12-01	3.12000
1959-01-01	3.19000
1959-02-01	3.16000
1959-03-01	3.06000
1959-04-01	3.12000
1959-05-01	3.29000
1959-06-01	3.37000
1959-07-01	3.51000
1959-08-01	3.44000
1959-09-01	3.60000
1959-10-01	3.57000
1959-11-01	3.44000
1959-12-01	3.43000
1960-01-01	3.49000
1960-02-01	3.40000
1960-03-01	3.34000
1960-04-01	3.30000
1960-05-01	3.34000
1960-06-01	3.33000
1960-07-01	3.31000
1960-08-01	3.10000
1960-09-01	3.09000
1960-10-01	3.20000
1960-11-01	3.14000
1960-12-01	3.12000
1961-01-01	3.15000
1961-02-01	3.14000
1961-03-01	3.23000
1961-04-01	3.27000
1961-05-01	3.25000
1961-06-01	3.35000
1961-07-01	3.35000
1961-08-01	3.33000
1961-09-01	3.33000
1961-10-01	3.28000
1961-11-01	3.27000
1961-12-01	3.32000
1962-01-01	3.21000
1962-02-01	3.08000
1962-03-01	3.03000
1962-04-01	2.98000
1962-05-01	2.98000
1962-06-01	3.06000
1962-07-01	3.10000
1962-08-01	3.10000
1962-09-01	3.01000
1962-10-01	2.94000
1962-11-01	2.89000
1962-12-01	2.93000
1963-01-01	2.95000
1963-02-01	2.99000
1963-03-01	2.97000
1963-04-01	2.97000
1963-05-01	2.99000
1963-06-01	3.09000
1963-07-01	3.10000
1963-08-01	3.09000
1963-09-01	3.13000
1963-10-01	3.15000
1963-11-01	3.17000
1963-12-01	3.12000
1964-01-01	3.09000
1964-02-01	3.08000
1964-03-01	3.14000
1964-04-01	3.12000
1964-05-01	3.09000
1964-06-01	3.10000
1964-07-01	3.08000
1964-08-01	3.08000
1964-09-01	3.09000
1964-10-01	3.11000
1964-11-01	3.08000
1964-12-01	3.01000
1965-01-01	2.97000
1965-02-01	2.97000
1965-03-01	3.09000
1965-04-01	3.09000
1965-05-01	3.09000
1965-06-01	3.15000
1965-07-01	3.16000
1965-08-01	3.16000
1965-09-01	3.25000
1965-10-01	3.31000
1965-11-01	3.34000
1965-12-01	3.39000
1966-01-01	3.40000