Quarter	Per Cent Expanding
1947-07-01	68.2000
1947-10-01	50.0000
1948-01-01	63.6000
1948-04-01	50.0000
1948-07-01	31.8000
1948-10-01	9.10000
1949-01-01	4.50000
1949-04-01	4.50000
1949-07-01	25.0000
1949-10-01	31.8000
1950-01-01	72.7000
1950-04-01	97.7000
1950-07-01	100.000
1950-10-01	100.000
1951-01-01	95.5000
1951-04-01	72.7000
1951-07-01	78.9000
1951-10-01	44.7000
1952-01-01	31.6000
1952-04-01	39.5000
1952-07-01	47.4000
1952-10-01	50.0000
1953-01-01	84.2000
1953-04-01	63.2000
1953-07-01	50.0000
1953-10-01	34.2000
1954-01-01	26.3000
1954-04-01	21.1000
1954-07-01	15.0000
1954-10-01	55.0000
1955-01-01	80.0000
1955-04-01	100.000
1955-07-01	100.000
1955-10-01	100.000
1956-01-01	100.000
1956-04-01	100.000
1956-07-01	85.0000
1956-10-01	80.0000
1957-01-01	60.0000
1957-04-01	45.0000
1957-07-01	15.0000
1957-10-01	5.00000
1958-01-01	0.000000
1958-04-01	5.00000
1958-07-01	35.0000
1958-10-01	65.0000