Quarter	Per Cent Expanding
1947-01-01	51.0000
1947-04-01	56.0000
1947-07-01	46.5000
1947-10-01	65.0000
1948-01-01	50.0000
1948-04-01	59.8000
1948-07-01	49.5000
1948-10-01	61.0000
1949-01-01	26.5000
1949-04-01	33.5000
1949-07-01	56.0000
1949-10-01	59.5000
1950-01-01	44.0000
1950-04-01	82.5000
1950-07-01	84.5000
1950-10-01	51.0000
1951-01-01	28.2000
1951-04-01	51.5000
1951-07-01	36.5000
1951-10-01	67.0000
1952-01-01	31.5000
1952-04-01	42.5000
1952-07-01	52.0000
1952-10-01	72.0000
1953-01-01	40.2000
1953-04-01	63.5000
1953-07-01	44.0000
1953-10-01	53.0000