Month	Percent
1915-01-01	5.16000
1915-02-01	5.34000
1915-03-01	5.28000
1915-04-01	5.25000
1915-05-01	5.35000
1915-06-01	5.40000
1915-07-01	5.47000
1915-08-01	5.53000
1915-09-01	5.52000
1915-10-01	5.23000
1915-11-01	5.01000
1915-12-01	5.05000
1916-01-01	5.07000
1916-02-01	5.09000
1916-03-01	5.10000
1916-04-01	5.17000
1916-05-01	5.13000
1916-06-01	5.14000
1916-07-01	5.19000
1916-08-01	5.21000
1916-09-01	5.21000
1916-10-01	5.10000
1916-11-01	5.05000
1916-12-01	5.09000
1917-01-01	4.99000
1917-02-01	5.14000
1917-03-01	5.16000
1917-04-01	5.29000
1917-05-01	5.46000
1917-06-01	5.52000
1917-07-01	5.54000
1917-08-01	5.58000
1917-09-01	5.73000
1917-10-01	5.81000
1917-11-01	6.12000
1917-12-01	6.23000
1918-01-01	6.20000
1918-02-01	6.14000
1918-03-01	6.23000
1918-04-01	6.19000
1918-05-01	6.09000
1918-06-01	6.11000
1918-07-01	6.14000
1918-08-01	6.13000
1918-09-01	6.28000
1918-10-01	6.01000
1918-11-01	5.57000
1918-12-01	5.63000
1919-01-01	5.77000
1919-02-01	5.84000
1919-03-01	5.90000
1919-04-01	5.96000
1919-05-01	5.80000
1919-06-01	5.82000
1919-07-01	5.93000
1919-08-01	6.16000
1919-09-01	6.23000
1919-10-01	6.12000
1919-11-01	6.37000
1919-12-01	6.59000
1920-01-01	6.48000
1920-02-01	6.76000
1920-03-01	6.66000
1920-04-01	7.01000
1920-05-01	7.24000
1920-06-01	7.16000
1920-07-01	7.18000
1920-08-01	7.05000
1920-09-01	6.70000
1920-10-01	6.37000
1920-11-01	6.57000
1920-12-01	6.92000
1921-01-01	6.57000
1921-02-01	6.68000
1921-03-01	6.76000
1921-04-01	6.76000
1921-05-01	6.68000
1921-06-01	6.88000
1921-07-01	6.66000
1921-08-01	6.55000
1921-09-01	6.38000
1921-10-01	6.37000
1921-11-01	6.08000
1921-12-01	5.92000
1922-01-01	5.84000
1922-02-01	5.84000
1922-03-01	5.71000
1922-04-01	5.54000
1922-05-01	5.49000
1922-06-01	5.56000
1922-07-01	5.47000
1922-08-01	5.33000
1922-09-01	5.34000
1922-10-01	5.46000
1922-11-01	5.67000
1922-12-01	5.69000
1923-01-01	5.73000
1923-02-01	5.77000
1923-03-01	5.93000
1923-04-01	5.93000
1923-05-01	5.91000
1923-06-01	5.88000
1923-07-01	5.91000
1923-08-01	5.90000
1923-09-01	5.99000
1923-10-01	6.03000
1923-11-01	5.99000
1923-12-01	5.94000
1924-01-01	5.85000
1924-02-01	5.82000
1924-03-01	5.81000
1924-04-01	5.75000
1924-05-01	5.66000
1924-06-01	5.52000
1924-07-01	5.44000
1924-08-01	5.44000
1924-09-01	5.43000
1924-10-01	5.38000
1924-11-01	5.33000
1924-12-01	5.36000
1925-01-01	5.32000
1925-02-01	5.26000
1925-03-01	5.30000
1925-04-01	5.27000
1925-05-01	5.16000
1925-06-01	5.14000
1925-07-01	5.21000
1925-08-01	5.26000
1925-09-01	5.20000
1925-10-01	5.21000
1925-11-01	5.15000
1925-12-01	5.11000
1926-01-01	5.05000
1926-02-01	4.99000
1926-03-01	5.02000
1926-04-01	4.92000
1926-05-01	4.88000
1926-06-01	4.87000
1926-07-01	4.91000
1926-08-01	4.93000
1926-09-01	4.92000
1926-10-01	4.92000
1926-11-01	4.86000
1926-12-01	4.85000
1927-01-01	4.79000
1927-02-01	4.80000
1927-03-01	4.78000
1927-04-01	4.74000
1927-05-01	4.72000
1927-06-01	4.76000
1927-07-01	4.75000
1927-08-01	4.68000
1927-09-01	4.65000
1927-10-01	4.59000
1927-11-01	4.55000
1927-12-01	4.52000
1928-01-01	4.51000
1928-02-01	4.51000
1928-03-01	4.50000
1928-04-01	4.55000
1928-05-01	4.60000
1928-06-01	4.74000
1928-07-01	4.81000
1928-08-01	4.94000
1928-09-01	4.85000
1928-10-01	4.88000
1928-11-01	4.81000
1928-12-01	4.89000
1929-01-01	4.92000
1929-02-01	4.99000
1929-03-01	5.06000
1929-04-01	5.05000
1929-05-01	5.06000
1929-06-01	5.09000
1929-07-01	5.09000
1929-08-01	5.18000
1929-09-01	5.15000
1929-10-01	5.04000
1929-11-01	4.99000
1929-12-01	4.84000
1930-01-01	4.86000
1930-02-01	4.84000
1930-03-01	4.76000
1930-04-01	4.74000
1930-05-01	4.73000
1930-06-01	4.71000
1930-07-01	4.70000
1930-08-01	4.60000
1930-09-01	4.53000
1930-10-01	4.57000
1930-11-01	4.66000
1930-12-01	4.83000
1931-01-01	4.62000
1931-02-01	4.63000
1931-03-01	4.62000
1931-04-01	4.76000
1931-05-01	4.85000
1931-06-01	5.10000
1931-07-01	4.98000
1931-08-01	5.65000
1931-09-01	6.24000
1931-10-01	7.08000
1931-11-01	7.54000
1931-12-01	10.2300
1932-01-01	8.60000
1932-02-01	8.42000
1932-03-01	8.59000
1932-04-01	11.6500
1932-05-01	14.6500
1932-06-01	15.1100
1932-07-01	14.5900
1932-08-01	10.9100
1932-09-01	10.8500
1932-10-01	13.4300
1932-11-01	14.3000
1932-12-01	16.5300
1933-01-01	15.4100
1933-02-01	15.8900
1933-03-01	16.7200
1933-04-01	17.6100
1933-05-01	13.0700
1933-06-01	6.75000
1933-07-01	6.03000
1933-08-01	6.09000
1933-09-01	6.42000
1933-10-01	6.85000
1933-11-01	7.58000
1933-12-01	6.98000
1934-01-01	6.21000
1934-02-01	5.62000
1934-03-01	5.56000
1934-04-01	5.41000
1934-05-01	5.57000
1934-06-01	5.60000
1934-07-01	5.72000
1934-08-01	6.19000
1934-09-01	6.44000
1934-10-01	6.20000
1934-11-01	6.30000
1934-12-01	6.19000
1935-01-01	6.09000
1935-02-01	6.43000
1935-03-01	7.29000
1935-04-01	7.40000
1935-05-01	7.32000
1935-06-01	7.01000
1935-07-01	7.14000
1935-08-01	7.07000
1935-09-01	7.20000
1935-10-01	7.80000
1935-11-01	7.03000
1935-12-01	6.67000
1936-01-01	5.97000
1936-02-01	5.47000
1936-03-01	5.38000
1936-04-01	5.66000
1936-05-01	5.68000
1936-06-01	5.53000
1936-07-01	5.37000
1936-08-01	5.14000
1936-09-01	4.95000
1936-10-01	4.81000
1936-11-01	4.86000
1936-12-01	4.85000
1937-01-01	4.83000
1937-02-01	4.86000
1937-03-01	5.00000
1937-04-01	5.25000
1937-05-01	5.30000
1937-06-01	5.43000
1937-07-01	5.45000
1937-08-01	5.71000
1937-09-01	6.22000
1937-10-01	7.18000
1937-11-01	8.48000
1937-12-01	8.47000
1938-01-01	9.46000
1938-02-01	9.53000
1938-03-01	10.5700
1938-04-01	11.3100
1938-05-01	10.4800
1938-06-01	13.0900
1938-07-01	10.2300