1947-1952 Spring, 1947 February, 1950 February, 1952

1952-1953 November, 1952 February, 1953 June, 1953

1953-1954 November, 1953 May, 1954

1954-1955 November, 1954 February, 1955 May, 1955

1955-1956 November, 1955 February, 1956 May, 1956

1956-1957 November, 1956 February, 1957 May, 1957

1957-1958 November, 1957 February, 1958 May, 1958

1958-1959 November, 1958 February, 1959 May, 1959

1959-1960 November, 1959 February, 1960 May, 1960

1960-1961 February, 1961 May, 1961

1961-1962 February, 1962 May, 1962

1962-1963 November, 1962 February, 1963 May, 1963

1963-1964 November, 1963 February, 1964 April, 1964

1964-1965 October, 1964 February, 1965 May, 1965

1965-1966 October, 1965 April, 1966

1966-1967 February, 1967 April, 1967

1967-1968 January, 1968 April, 1968

1968-1972 October, 1969 March, 1970 October, 1970 December, 1971