31 March 1966 - 5 April 1966
6 April 1965 - 13 April 1965
6 April 1964 - 13 April 1964
4 April 1963 - 9 April 1963
3 April 1962 - 10 April 1962
6 April 1961 - 11 April 1961
7 April 1960 - 12 April 1960
2 April 1959 - 8 April 1959
4 April 1958 - 9 April 1958
24 April 1957 - 29 April 1957