20 September 1986 - 21 September 1986
21 September 1985 - 22 September 1985
15 September 1984 - 16 September 1984
17 September 1983 - 18 September 1983
24 September 1982 - 25 September 1982
19 September 1981 - 20 September 1981
20 September 1980 - 21 September 1980
22 September 1979 - 23 September 1979
20 August 1978 - 25 August 1978
1 October 1977 - 2 October 1977