Monthly %
1950-05-01 66
1950-06-01 70
1950-07-01 72
1950-08-01 76
1950-09-01 74
1950-10-01 67
1950-11-01 64
1950-12-01 58
1951-01-01 62
1951-02-01 62
1951-03-01 61
1951-04-01 60
1951-05-01 58
1951-06-01 56
1951-07-01 51
1951-08-01 50
1951-09-01 52
1951-10-01 52
1951-11-01 49
1951-12-01 50
1952-01-01 51
1952-02-01 50
1952-03-01 49
1952-04-01 50
1952-05-01 46
1952-06-01 44
1952-07-01 43
1952-08-01 53
1952-09-01 59
1952-10-01 59
1952-11-01 59
1952-12-01 57
1953-01-01 56
1953-02-01 57
1953-03-01 59
1953-04-01 55
1953-05-01 52
1953-06-01 54
1953-07-01 53
1953-08-01 51
1953-09-01 49
1953-10-01 45
1953-11-01 41
1953-12-01 38
1954-01-01 41
1954-02-01 38
1954-03-01 40
1954-04-01 41
1954-05-01 42
1954-06-01 43
1954-07-01 42
1954-08-01 49
1954-09-01 61
1954-10-01 61
1954-11-01 55
1954-12-01 51
1955-01-01 58
1955-02-01 61
1955-03-01 63
1955-04-01 70
1955-05-01 68
1955-06-01 65
1955-07-01 60
1955-08-01 61
1955-09-01 66
1955-10-01 62
1955-11-01 56
1955-12-01 56
1956-01-01 57
1956-02-01 53
1956-03-01 56
1956-04-01 56
1956-05-01 50
1956-06-01 45
1956-07-01 49
1956-08-01 53
1956-09-01 57
1956-10-01 56
1956-11-01 52
1956-12-01 50
1957-01-01 50
1957-02-01 48
1957-03-01 49
1957-04-01 45
1957-05-01 48
1957-06-01 46
1957-07-01 51
1957-08-01 44
1957-09-01 49
1957-10-01 46
1957-11-01 41
1957-12-01 31
1958-01-01 33
1958-02-01 30
1958-03-01 30
1958-04-01 34
1958-05-01 43
1958-06-01 49
1958-07-01 49
1958-08-01 58
1958-09-01 61
1958-10-01 60
1958-11-01 63
1958-12-01 55
1959-01-01 56
1959-02-01 61
1959-03-01 62
1959-04-01 59
1959-05-01 59
1959-06-01 67
1959-07-01 62
1959-08-01 58
1959-09-01 55
1959-10-01 48
1959-11-01 48
1959-12-01 50
1960-01-01 55
1960-02-01 48
1960-03-01 47
1960-04-01 47
1960-05-01 46
1960-06-01 49
1960-07-01 1.e-37
1960-08-01 1.e-37
1960-09-01 1.e-37
1960-10-01 1.e-37
1960-11-01 1.e-37
1960-12-01 1.e-37