Month	Percentage
1948-01-01	54.0000
1948-02-01	48.0000
1948-03-01	40.0000
1948-04-01	44.0000
1948-05-01	50.0000
1948-06-01	54.0000
1948-07-01	54.0000
1948-08-01	54.0000
1948-09-01	45.0000
1948-10-01	52.0000
1948-11-01	44.0000
1948-12-01	30.0000
1949-01-01	32.0000
1949-02-01	32.0000
1949-03-01	39.0000
1949-04-01	42.0000
1949-05-01	40.0000
1949-06-01	37.0000
1949-07-01	51.0000
1949-08-01	65.0000
1949-09-01	64.0000
1949-10-01	58.0000
1949-11-01	60.0000
1949-12-01	55.0000
1950-01-01	62.0000
1950-02-01	60.0000
1950-03-01	58.0000
1950-04-01	72.0000
1950-05-01	73.0000
1950-06-01	76.0000
1950-07-01	82.0000
1950-08-01	88.0000
1950-09-01	74.0000
1950-10-01	59.0000
1950-11-01	59.0000
1950-12-01	60.0000
1951-01-01	68.0000
1951-02-01	68.0000
1951-03-01	59.0000
1951-04-01	44.0000
1951-05-01	44.0000
1951-06-01	38.0000
1951-07-01	38.0000
1951-08-01	39.0000
1951-09-01	53.0000
1951-10-01	52.0000
1951-11-01	52.0000
1951-12-01	40.0000
1952-01-01	44.0000
1952-02-01	42.0000
1952-03-01	46.0000
1952-04-01	39.0000
1952-05-01	43.0000
1952-06-01	44.0000
1952-07-01	44.0000
1952-08-01	62.0000
1952-09-01	66.0000
1952-10-01	60.0000
1952-11-01	61.0000
1952-12-01	54.0000
1953-01-01	60.0000
1953-02-01	56.0000
1953-03-01	50.0000
1953-04-01	56.0000
1953-05-01	48.0000
1953-06-01	46.0000
1953-07-01	46.0000
1953-08-01	44.0000
1953-09-01	42.0000
1953-10-01	38.0000
1953-11-01	42.0000
1953-12-01	34.0000
1954-01-01	40.0000
1954-02-01	50.0000
1954-03-01	57.0000
1954-04-01	63.0000
1954-05-01	60.0000
1954-06-01	62.0000
1954-07-01	62.0000
1954-08-01	60.0000
1954-09-01	65.0000
1954-10-01	68.0000
1954-11-01	68.0000
1954-12-01	66.0000
1955-01-01	62.0000
1955-02-01	74.0000
1955-03-01	74.0000
1955-04-01	76.0000
1955-05-01	72.0000
1955-06-01	60.0000
1955-07-01	60.0000
1955-08-01	75.0000
1955-09-01	66.0000
1955-10-01	68.0000
1955-11-01	62.0000
1955-12-01	60.0000
1956-01-01	58.0000
1956-02-01	56.0000
1956-03-01	58.0000
1956-04-01	58.0000
1956-05-01	54.0000
1956-06-01	48.0000
1956-07-01	48.0000
1956-08-01	58.0000
1956-09-01	63.0000
1956-10-01	57.0000
1956-11-01	58.0000
1956-12-01	46.0000
1957-01-01	54.0000
1957-02-01	52.0000
1957-03-01	51.0000
1957-04-01	51.0000
1957-05-01	47.0000