Month	Percent
1919-01-01	4.89000
1919-02-01	5.10000
1919-03-01	5.15000
1919-04-01	5.28000
1919-05-01	5.23000
1919-06-01	5.71000
1919-07-01	5.73000
1919-08-01	5.36000
1919-09-01	5.30000
1919-10-01	5.91000
1919-11-01	7.26000
1919-12-01	6.76000
1920-01-01	6.85000
1920-02-01	7.70000
1920-03-01	7.41000
1920-04-01	7.12000
1920-05-01	7.27000
1920-06-01	7.52000
1920-07-01	7.84000
1920-08-01	7.70000
1920-09-01	7.52000
1920-10-01	7.50000
1920-11-01	7.59000
1920-12-01	7.22000
1921-01-01	6.99200
1921-02-01	7.20600
1921-03-01	7.02400
1921-04-01	6.78700
1921-05-01	6.68400
1921-06-01	6.20000
1921-07-01	5.89500
1921-08-01	5.72500
1921-09-01	5.46400
1921-10-01	5.30600
1921-11-01	4.98600
1921-12-01	4.92300
1922-01-01	4.55700
1922-02-01	4.77000
1922-03-01	4.37300
1922-04-01	4.10400
1922-05-01	3.93200
1922-06-01	3.84100
1922-07-01	3.77800
1922-08-01	3.77900
1922-09-01	4.12400
1922-10-01	4.51500
1922-11-01	4.70400
1922-12-01	4.61400
1923-01-01	4.38400
1923-02-01	4.66700
1923-03-01	4.92000
1923-04-01	4.90600
1923-05-01	4.75300
1923-06-01	4.82700
1923-07-01	4.89300
1923-08-01	4.96900
1923-09-01	5.02800
1923-10-01	4.86500
1923-11-01	4.77900
1923-12-01	4.74600
1924-01-01	4.52100
1924-02-01	4.49200
1924-03-01	4.33200
1924-04-01	4.30000
1924-05-01	3.77800
1924-06-01	2.89400
1924-07-01	2.63000
1924-08-01	2.53200
1924-09-01	2.62800
1924-10-01	2.69800
1924-11-01	2.89600
1924-12-01	3.45600
1925-01-01	3.39200
1925-02-01	3.57600
1925-03-01	3.86700
1925-04-01	3.77300
1925-05-01	3.71800
1925-06-01	3.78800
1925-07-01	3.84600
1925-08-01	4.01000
1925-09-01	4.28300
1925-10-01	4.46200
1925-11-01	4.43000
1925-12-01	4.60400
1926-01-01	4.27400
1926-02-01	4.38000
1926-03-01	4.35200
1926-04-01	4.05600
1926-05-01	3.79300
1926-06-01	3.95800
1926-07-01	4.08100
1926-08-01	4.33100
1926-09-01	4.65600
1926-10-01	4.58800
1926-11-01	4.41800
1926-12-01	4.59800
1927-01-01	4.20800
1927-02-01	4.07200
1927-03-01	4.08900
1927-04-01	4.10400
1927-05-01	4.11600
1927-06-01	4.19900
1927-07-01	4.07800
1927-08-01	3.75400
1927-09-01	3.79900
1927-10-01	3.87000
1927-11-01	3.76800
1927-12-01	3.98900
1928-01-01	4.02200
1928-02-01	4.12600
1928-03-01	4.20400
1928-04-01	4.57400
1928-05-01	4.91000
1928-06-01	5.27600
1928-07-01	5.40200
1928-08-01	5.84800
1928-09-01	6.16600
1928-10-01	6.06900
1928-11-01	5.90100
1928-12-01	6.56800
1929-01-01	6.25200
1929-02-01	6.31800
1929-03-01	7.14200
1929-04-01	7.31700
1929-05-01	7.32300
1929-06-01	6.83500
1929-07-01	7.14400
1929-08-01	7.10600
1929-09-01	7.22500
1929-10-01	6.42900
1929-11-01	5.27000
1929-12-01	4.69900
1930-01-01	4.61700
1930-02-01	4.43400
1930-03-01	3.85700
1930-04-01	3.77500
1930-05-01	3.26100
1930-06-01	2.83600
1930-07-01	2.56000
1930-08-01	2.46300
1930-09-01	2.45700
1930-10-01	2.40000
1930-11-01	2.26200
1930-12-01	2.35600
1931-01-01	2.07100
1931-02-01	1.90000
1931-03-01	1.94000
1931-04-01	1.86800
1931-05-01	1.62200
1931-06-01	1.52500
1931-07-01	1.50000
1931-08-01	1.50000
1931-09-01	1.58800
1931-10-01	2.66800
1931-11-01	3.26200
1931-12-01	3.27200
1932-01-01	3.28200
1932-02-01	3.20000
1932-03-01	2.96200
1932-04-01	2.60000
1932-05-01	2.23800
1932-06-01	2.05000
1932-07-01	1.79900
1932-08-01	1.70000
1932-09-01	1.66200
1932-10-01	1.30500
1932-11-01	0.988000
1932-12-01	0.925000
1933-01-01	0.875000
1933-02-01	0.975000
1933-03-01	2.97100
1933-04-01	1.62400
1933-05-01	1.26200
1933-06-01	1.07500
1933-07-01	1.10000
1933-08-01	1.05600
1933-09-01	0.812000
1933-10-01	0.788000
1933-11-01	0.838000
1933-12-01	1.02000
1934-01-01	1.03800
1934-02-01	0.988000
1934-03-01	0.888000
1934-04-01	0.850000
1934-05-01	0.812000
1934-06-01	0.775000
1934-07-01	0.775000
1934-08-01	0.775000
1934-09-01	0.775000
1934-10-01	0.769000
1934-11-01	0.762000
1934-12-01	0.762000
1935-01-01	0.762000
1935-02-01	0.725000
1935-03-01	0.725000
1935-04-01	0.567000
1935-05-01	0.375000
1935-06-01	0.375000
1935-07-01	0.375000
1935-08-01	0.375000
1935-09-01	0.375000
1935-10-01	0.387000
1935-11-01	0.675000
1935-12-01	0.675000
1936-01-01	0.675000
1936-02-01	0.675000
1936-03-01	0.675000
1936-04-01	0.675000
1936-05-01	0.754000
1936-06-01	0.800000
1936-07-01	0.806000
1936-08-01	0.812000
1936-09-01	0.812000
1936-10-01	0.812000
1936-11-01	0.812000
1936-12-01	0.812000
1937-01-01	0.819000
1937-02-01	0.838000
1937-03-01	0.900000
1937-04-01	0.962000
1937-05-01	0.956000
1937-06-01	0.944000
1937-07-01	0.938000
1937-08-01	0.938000
1937-09-01	0.938000
1937-10-01	0.938000
1937-11-01	0.938000
1937-12-01	0.938000
1938-01-01	0.938000
1938-02-01	0.938000
1938-03-01	0.900000
1938-04-01	0.900000
1938-05-01	0.900000
1938-06-01	0.900000
1938-07-01	0.862000
1938-08-01	0.862000
1938-09-01	0.844000
1938-10-01	0.844000
1938-11-01	0.844000
1938-12-01	0.825000
1939-01-01	0.806000
1939-02-01	0.806000
1939-03-01	0.806000
1939-04-01	0.806000
1939-05-01	0.806000
1939-06-01	0.806000
1939-07-01	0.806000
1939-08-01	0.806000
1939-09-01	0.844000
1939-10-01	0.844000
1939-11-01	0.825000
1939-12-01	0.806000
1940-01-01	0.806000
1940-02-01	0.806000
1940-03-01	0.806000
1940-04-01	0.806000
1940-05-01	0.806000
1940-06-01	0.806000
1940-07-01	0.806000
1940-08-01	0.806000
1940-09-01	0.806000
1940-10-01	0.806000
1940-11-01	0.806000
1940-12-01	0.806000
1941-01-01	0.806000
1941-02-01	0.806000