29 March 1956 - 2 April 1956
12 April 1955 - 19 April 1955
15 April 1954 - 19 April 1954
9 April 1953 - 11 April 1953
17 April 1952 - 22 April 1952
29 March 1951 - 31 March 1951
13 April 1950 - 18 April 1950
10 September 1949 - 16 September 1949
1 October 1948 - 3 October 1948
3 September 1947 - 9 September 1947