Month	Percent
1917-08-01	3.05000
1917-09-01	3.28000
1917-10-01	3.31000
1917-11-01	3.39000
1917-12-01	3.65000
1918-01-01	3.88000
1918-02-01	3.94000
1918-03-01	4.25000
1918-04-01	4.21000
1918-05-01	4.20000
1918-06-01	4.25000
1918-07-01	4.25000
1918-08-01	4.25000
1918-09-01	4.25000
1918-10-01	4.26000
1918-11-01	4.29000
1918-12-01	4.25000
1919-01-01	4.25000
1919-02-01	4.28000
1919-03-01	4.28000
1919-04-01	4.28000
1919-05-01	4.28000
1919-06-01	4.28000
1919-07-01	4.31000
1919-08-01	4.34000
1919-09-01	4.25000
1919-10-01	4.34000
1919-11-01	4.44000
1919-12-01	5.13000
1920-01-01	5.25000
1920-02-01	5.63000
1920-03-01	6.00000
1920-04-01	6.00000
1920-05-01	6.19000
1920-06-01	6.38000
1920-07-01	6.25000
1920-08-01	6.13000
1920-09-01	6.13000
1920-10-01	6.25000
1920-11-01	6.25000
1920-12-01	6.25000
1921-01-01	6.06000
1921-02-01	6.00000
1921-03-01	6.00000
1921-04-01	5.75000
1921-05-01	5.75000
1921-06-01	5.69000
1921-07-01	5.25000
1921-08-01	5.00000
1921-09-01	4.88000
1921-10-01	4.50000
1921-11-01	4.31000
1921-12-01	4.13000
1922-01-01	3.94000
1922-02-01	4.00000
1922-03-01	3.75000
1922-04-01	3.31000
1922-05-01	3.13000
1922-06-01	3.06000
1922-07-01	3.00000
1922-08-01	3.00000
1922-09-01	3.13000
1922-10-01	3.75000
1922-11-01	4.00000
1922-12-01	4.00000
1923-01-01	4.00000
1923-02-01	3.94000
1923-03-01	4.00000
1923-04-01	4.13000
1923-05-01	4.13000
1923-06-01	4.13000
1923-07-01	4.13000
1923-08-01	4.13000
1923-09-01	4.13000
1923-10-01	4.13000
1923-11-01	4.13000
1923-12-01	4.13000
1924-01-01	4.06000
1924-02-01	4.06000
1924-03-01	4.00000
1924-04-01	4.00000
1924-05-01	3.25000
1924-06-01	2.50000
1924-07-01	2.00000
1924-08-01	2.13000
1924-09-01	2.19000
1924-10-01	2.19000
1924-11-01	2.38000
1924-12-01	2.94000
1925-01-01	3.00000
1925-02-01	3.06000
1925-03-01	3.25000
1925-04-01	3.19000
1925-05-01	3.19000
1925-06-01	3.25000
1925-07-01	3.25000
1925-08-01	3.25000
1925-09-01	3.50000
1925-10-01	3.50000
1925-11-01	3.50000
1925-12-01	3.50000
1926-01-01	3.63000
1926-02-01	3.63000
1926-03-01	3.63000
1926-04-01	3.38000
1926-05-01	3.19000
1926-06-01	3.25000
1926-07-01	3.38000
1926-08-01	3.56000
1926-09-01	3.88000
1926-10-01	3.88000
1926-11-01	3.81000
1926-12-01	3.81000
1927-01-01	3.69000
1927-02-01	3.69000
1927-03-01	3.63000
1927-04-01	3.63000
1927-05-01	3.63000
1927-06-01	3.63000
1927-07-01	3.56000
1927-08-01	3.13000
1927-09-01	3.13000
1927-10-01	3.19000
1927-11-01	3.25000
1927-12-01	3.25000
1928-01-01	3.38000
1928-02-01	3.50000
1928-03-01	3.50000
1928-04-01	3.75000
1928-05-01	4.00000
1928-06-01	4.06000
1928-07-01	4.25000
1928-08-01	4.63000
1928-09-01	4.50000
1928-10-01	4.50000
1928-11-01	4.50000
1928-12-01	4.50000
1929-01-01	4.75000
1929-02-01	5.13000
1929-03-01	5.38000
1929-04-01	5.50000
1929-05-01	5.50000
1929-06-01	5.50000
1929-07-01	5.13000
1929-08-01	5.13000
1929-09-01	5.13000
1929-10-01	5.13000
1929-11-01	4.19000
1929-12-01	3.88000
1930-01-01	3.94000
1930-02-01	3.81000
1930-03-01	3.13000
1930-04-01	2.94000
1930-05-01	2.50000
1930-06-01	2.13000
1930-07-01	1.88000
1930-08-01	1.88000
1930-09-01	1.88000
1930-10-01	1.88000
1930-11-01	1.88000
1930-12-01	1.88000
1931-01-01	1.56000
1931-02-01	1.44000
1931-03-01	1.50000
1931-04-01	1.50000
1931-05-01	1.00000
1931-06-01	0.880000
1931-07-01	0.880000
1931-08-01	0.880000
1931-09-01	0.880000
1931-10-01	2.25000
1931-11-01	3.06000
1931-12-01	3.00000
1932-01-01	2.88000
1932-02-01	2.81000
1932-03-01	2.50000
1932-04-01	1.50000
1932-05-01	1.00000
1932-06-01	0.880000
1932-07-01	0.750000
1932-08-01	0.750000
1932-09-01	0.750000
1932-10-01	0.630000
1932-11-01	0.500000
1932-12-01	0.380000
1933-01-01	0.310000
1933-02-01	0.440000
1933-03-01	2.38000
1933-04-01	1.13000
1933-05-01	0.500000
1933-06-01	0.380000
1933-07-01	0.440000
1933-08-01	0.500000
1933-09-01	0.250000
1933-10-01	0.250000
1933-11-01	0.380000
1933-12-01	0.630000
1934-01-01	0.500000
1934-02-01	0.500000
1934-03-01	0.380000
1934-04-01	0.190000
1934-05-01	0.190000
1934-06-01	0.190000
1934-07-01	0.190000
1934-08-01	0.190000
1934-09-01	0.190000
1934-10-01	0.190000
1934-11-01	0.130000
1934-12-01	0.130000
1935-01-01	0.130000
1935-02-01	0.130000
1935-03-01	0.130000
1935-04-01	0.130000
1935-05-01	0.130000
1935-06-01	0.130000
1935-07-01	0.130000
1935-08-01	0.130000
1935-09-01	0.130000
1935-10-01	0.130000
1935-11-01	0.130000
1935-12-01	0.130000
1936-01-01	0.130000
1936-02-01	0.130000
1936-03-01	0.130000
1936-04-01	0.130000
1936-05-01	0.130000
1936-06-01	0.130000
1936-07-01	0.160000
1936-08-01	0.190000
1936-09-01	0.190000
1936-10-01	0.190000
1936-11-01	0.190000
1936-12-01	0.190000
1937-01-01	0.220000
1937-02-01	0.310000
1937-03-01	0.380000
1937-04-01	0.560000
1937-05-01	0.530000
1937-06-01	0.470000
1937-07-01	0.440000
1937-08-01	0.440000
1937-09-01	0.440000
1937-10-01	0.440000
1937-11-01	0.440000
1937-12-01	0.440000
1938-01-01	0.440000
1938-02-01	0.440000
1938-03-01	0.440000
1938-04-01	0.440000
1938-05-01	0.440000
1938-06-01	0.440000
1938-07-01	0.440000
1938-08-01	0.440000
1938-09-01	0.440000
1938-10-01	0.440000
1938-11-01	0.440000
1938-12-01	0.440000
1939-01-01	0.440000
1939-02-01	0.440000
1939-03-01	0.440000
1939-04-01	0.440000
1939-05-01	0.440000
1939-06-01	0.440000
1939-07-01	0.440000
1939-08-01	0.440000
1939-09-01	0.440000
1939-10-01	0.440000
1939-11-01	0.440000
1939-12-01	0.440000
1940-01-01	0.440000
1940-02-01	0.440000
1940-03-01	0.440000
1940-04-01	0.440000
1940-05-01	0.440000
1940-06-01	0.440000
1940-07-01	0.440000
1940-08-01	0.440000
1940-09-01	0.440000
1940-10-01	0.440000
1940-11-01	0.440000
1940-12-01	0.440000
1941-01-01	0.440000
1941-02-01	0.440000
1941-03-01	0.440000
1941-04-01	0.440000
1941-05-01	0.440000
1941-06-01	0.440000
1941-07-01	0.440000
1941-08-01	0.440000
1941-09-01	0.440000
1941-10-01	0.440000
1941-11-01	0.440000
1941-12-01	0.440000
1942-01-01	0.440000
1942-02-01	0.440000
1942-03-01	0.440000
1942-04-01	0.440000
1942-05-01	0.440000
1942-06-01	0.440000
1942-07-01	0.440000
1942-08-01	0.440000
1942-09-01	0.440000
1942-10-01	0.440000
1942-11-01	0.440000
1942-12-01	0.440000
1943-01-01	0.440000
1943-02-01	0.440000
1943-03-01	0.440000
1943-04-01	0.440000
1943-05-01	0.440000
1943-06-01	0.440000
1943-07-01	0.440000
1943-08-01	0.440000
1943-09-01	0.440000
1943-10-01	0.440000
1943-11-01	0.440000
1943-12-01	0.440000
1944-01-01	0.440000
1944-02-01	0.440000
1944-03-01	0.440000
1944-04-01	0.440000
1944-05-01	0.440000
1944-06-01	0.440000
1944-07-01	0.440000
1944-08-01	0.440000
1944-09-01	0.440000
1944-10-01	0.440000
1944-11-01	0.440000
1944-12-01	0.440000
1945-01-01	0.440000
1945-02-01	0.440000
1945-03-01	0.440000
1945-04-01	0.440000
1945-05-01	0.440000
1945-06-01	0.440000
1945-07-01	0.440000
1945-08-01	0.440000
1945-09-01	0.440000
1945-10-01	0.440000
1945-11-01	0.440000
1945-12-01	0.440000
1946-01-01	0.440000
1946-02-01	0.440000
1946-03-01	0.440000
1946-04-01	0.440000
1946-05-01	0.470000
1946-06-01	0.500000
1946-07-01	0.590000
1946-08-01	0.750000
1946-09-01	0.810000
1946-10-01	0.810000
1946-11-01	0.810000
1946-12-01	0.810000
1947-01-01	0.810000
1947-02-01	0.810000
1947-03-01	0.810000
1947-04-01	0.810000
1947-05-01	0.810000
1947-06-01	0.810000
1947-07-01	0.810000
1947-08-01	0.880000
1947-09-01	0.940000
1947-10-01	0.940000
1947-11-01	0.940000
1947-12-01	1.03000
1948-01-01	1.06000
1948-02-01	1.06000
1948-03-01	1.06000
1948-04-01	1.06000
1948-05-01	1.06000
1948-06-01	1.06000
1948-07-01	1.06000
1948-08-01	1.13000
1948-09-01	1.19000
1948-10-01	1.19000
1948-11-01	1.19000
1948-12-01	1.19000
1949-01-01	1.19000
1949-02-01	1.19000
1949-03-01	1.19000
1949-04-01	1.19000
1949-05-01	1.19000
1949-06-01	1.19000
1949-07-01	1.06000
1949-08-01	1.06000
1949-09-01	1.06000
1949-10-01	1.06000
1949-11-01	1.06000
1949-12-01	1.06000
1950-01-01	1.06000
1950-02-01	1.06000
1950-03-01	1.06000
1950-04-01	1.06000
1950-05-01	1.06000
1950-06-01	1.06000
1950-07-01	1.06000
1950-08-01	1.16000
1950-09-01	1.31000
1950-10-01	1.31000
1950-11-01	1.31000
1950-12-01	1.31000
1951-01-01	1.37000
1951-02-01	1.50000
1951-03-01	1.61000
1951-04-01	1.63000
1951-05-01	1.63000
1951-06-01	1.63000
1951-07-01	1.63000
1951-08-01	1.63000
1951-09-01	1.63000
1951-10-01	1.63000
1951-11-01	1.63000
1951-12-01	1.68000
1952-01-01	1.75000
1952-02-01	1.75000
1952-03-01	1.75000
1952-04-01	1.75000
1952-05-01	1.75000
1952-06-01	1.75000
1952-07-01	1.75000
1952-08-01	1.75000
1952-09-01	1.75000
1952-10-01	1.75000
1952-11-01	1.75000
1952-12-01	1.75000
1953-01-01	1.82000
1953-02-01	1.88000
1953-03-01	1.88000
1953-04-01	1.88000
1953-05-01	1.88000
1953-06-01	1.88000
1953-07-01	1.88000
1953-08-01	1.88000
1953-09-01	1.88000
1953-10-01	1.88000
1953-11-01	1.88000
1953-12-01	1.88000
1954-01-01	1.88000
1954-02-01	1.68000
1954-03-01	1.48000
1954-04-01	1.25000
1954-05-01	1.25000
1954-06-01	1.25000
1954-07-01	1.25000
1954-08-01	1.25000
1954-09-01	1.25000
1954-10-01	1.25000
1954-11-01	1.25000
1954-12-01	1.25000
1955-01-01	1.33000
1955-02-01	1.38000
1955-03-01	1.38000
1955-04-01	1.43000
1955-05-01	1.50000
1955-06-01	1.50000
1955-07-01	1.50000
1955-08-01	1.67000
1955-09-01	2.08000
1955-10-01	2.23000
1955-11-01	2.17000
1955-12-01	2.43000
1956-01-01	2.45000
1956-02-01	2.38000
1956-03-01	2.38000
1956-04-01	2.44000
1956-05-01	2.50000
1956-06-01	2.45000
1956-07-01	2.43000
1956-08-01	2.65000
1956-09-01	2.88000
1956-10-01	2.88000
1956-11-01	3.05000
1956-12-01	3.35000
1957-01-01	3.38000
1957-02-01	3.38000
1957-03-01	3.27000
1957-04-01	3.20000
1957-05-01	3.25000
1957-06-01	3.36000
1957-07-01	3.38000
1957-08-01	3.78000
1957-09-01	3.83000
1957-10-01	3.75000
1957-11-01	3.50000
1957-12-01	3.35000
1958-01-01	3.06000
1958-02-01	2.30000
1958-03-01	1.80000
1958-04-01	1.52000
1958-05-01	1.30000
1958-06-01	1.13000
1958-07-01	1.13000
1958-08-01	1.65000
1958-09-01	2.39000
1958-10-01	2.75000
1958-11-01	2.75000
1958-12-01	2.75000
1959-01-01	2.75000
1959-02-01	2.75000
1959-03-01	2.88000
1959-04-01	2.98000
1959-05-01	3.17000
1959-06-01	3.31000
1959-07-01	3.45000
1959-08-01	3.56000
1959-09-01	4.07000
1959-10-01	4.25000
1959-11-01	4.25000
1959-12-01	4.47000
1960-01-01	4.78000
1960-02-01	4.44000
1960-03-01	3.96000
1960-04-01	3.88000
1960-05-01	3.78000
1960-06-01	3.28000
1960-07-01	3.13000
1960-08-01	3.04000
1960-09-01	3.00000
1960-10-01	3.00000
1960-11-01	3.00000
1960-12-01	2.92000
1961-01-01	2.86000
1961-02-01	2.78000
1961-03-01	2.94000
1961-04-01	2.84000
1961-05-01	2.68000
1961-06-01	2.75000
1961-07-01	2.75000
1961-08-01	2.81000
1961-09-01	2.84000
1961-10-01	2.75000
1961-11-01	2.75000
1961-12-01	2.87000
1962-01-01	3.00000
1962-02-01	3.00000
1962-03-01	3.00000
1962-04-01	3.00000
1962-05-01	2.91000
1962-06-01	2.90000
1962-07-01	3.07000
1962-08-01	3.11000
1962-09-01	3.09000
1962-10-01	3.03000
1962-11-01	3.00000
1962-12-01	3.00000
1963-01-01	3.07000
1963-02-01	3.13000
1963-03-01	3.13000
1963-04-01	3.13000
1963-05-01	3.13000
1963-06-01	3.24000
1963-07-01	3.41000
1963-08-01	3.59000
1963-09-01	3.63000
1963-10-01	3.63000
1963-11-01	3.71000
1963-12-01	3.63000
1964-01-01	3.70000
1964-02-01	3.75000
1964-03-01	3.75000
1964-04-01	3.80000
1964-05-01	3.75000
1964-06-01	3.75000
1964-07-01	3.75000
1964-08-01	3.75000
1964-09-01	3.75000
1964-10-01	3.75000
1964-11-01	3.79000
1964-12-01	4.00000
1965-01-01	4.00000
1965-02-01	4.10000
1965-03-01	4.15000
1965-04-01	4.19000
1965-05-01	4.25000
1965-06-01	4.25000
1965-07-01	4.22000
1965-08-01	4.14000
1965-09-01	4.25000
1965-10-01	4.25000
1965-11-01	4.25000
1965-12-01	4.55000