Quarter	Percent
1935-01-01	8.62000
1935-04-01	7.92000
1935-07-01	6.56000
1935-10-01	5.81000
1936-01-01	5.90000
1936-04-01	7.89000
1936-07-01	6.68000
1936-10-01	5.82000
1937-01-01	7.14000
1937-04-01	9.09000
1937-07-01	9.74000
1937-10-01	7.01000
1938-01-01	6.47000
1938-04-01	4.93000
1938-07-01	4.66000
1938-10-01	6.13000
1939-01-01	7.47000
1939-04-01	7.27000
1939-07-01	6.14000
1939-10-01	8.49000
1940-01-01	9.63000
1940-04-01	10.8200
1940-07-01	9.19000
1940-10-01	9.54000
1941-01-01	12.5500
1941-04-01	12.5900
1941-07-01	12.3500
1941-10-01	11.0500
1942-01-01	10.3600
1942-04-01	11.0900
1942-07-01	11.6400
1942-10-01	12.5900
1943-01-01	8.46000
1943-04-01	7.94000
1943-07-01	7.86000
1943-10-01	7.03000
1944-01-01	7.99000
1944-04-01	7.16000
1944-07-01	7.20000
1944-10-01	7.00000
1945-01-01	7.92000
1945-04-01	7.35000
1945-07-01	5.51000
1945-10-01	4.78000
1946-01-01	3.82000
1946-04-01	4.99000
1946-07-01	7.48000
1946-10-01	8.95000
1947-01-01	10.8100
1947-04-01	10.4500
1947-07-01	10.4600
1947-10-01	11.0500
1948-01-01	13.4600
1948-04-01	13.2100
1948-07-01	15.2400
1948-10-01	16.5000
1949-01-01	15.8700
1949-04-01	15.9500
1949-07-01	14.8800
1949-10-01	13.7700
1950-01-01	15.2200
1950-04-01	16.8400
1950-07-01	15.5800
1950-10-01	13.1800
1951-01-01	11.8600
1951-04-01	11.9300
1951-07-01	9.54000
1951-10-01	10.2200
1952-01-01	9.73000
1952-04-01	9.09000
1952-07-01	9.74000
1952-10-01	9.67000
1953-01-01	9.69000
1953-04-01	10.5300
1953-07-01	11.3500
1953-10-01	9.87000
1954-01-01	9.54000
1954-04-01	9.42000
1954-07-01	8.48000
1954-10-01	8.26000
1955-01-01	9.18000
1955-04-01	9.04000
1955-07-01	8.61000
1955-10-01	8.03000
1956-01-01	7.68000
1956-04-01	7.26000
1956-07-01	6.46000
1956-10-01	7.18000
1957-01-01	8.28000
1957-04-01	7.33000
1957-07-01	7.50000
1957-10-01	8.00000
1958-01-01	6.39000
1958-04-01	5.88000
1958-07-01	5.93000
1958-10-01	5.87000
1959-01-01	6.35000
1959-04-01	6.53000
1959-07-01	5.50000
1959-10-01	5.28000
1960-01-01	6.51000
1960-04-01	5.83000
1960-07-01	5.98000
1960-10-01	5.33000
1961-01-01	4.69000
1961-04-01	4.94000
1961-07-01	5.07000
1961-10-01	4.85000
1962-01-01	5.42000
1962-04-01	6.61000
1962-07-01	6.48000
1962-10-01	6.26000
1963-01-01	5.94000
1963-04-01	5.85000
1963-07-01	5.72000
1963-10-01	5.49000
1964-01-01	5.51000
1964-04-01	5.68000
1964-07-01	5.60000
1964-10-01	5.36000
1965-01-01	5.65000
1965-04-01	6.28000
1965-07-01	5.85000
1965-10-01	5.68000
1966-01-01	6.13000
1966-04-01	6.80000
1966-07-01	7.18000
1966-10-01	6.78000
1967-01-01	5.60000
1967-04-01	5.88000
1967-07-01	5.61000
1967-10-01	5.74000
1968-01-01	6.10000
1968-04-01	5.80000
1968-07-01	5.68000