1977 October 1977 November 1978 February 1978 March 1978 April 1978 May 1978 July 1978 August 1979 March 1979 April 1979 May 1979 June 1979 July 1980 March 1980 June 1980 November 1980 December 1981 January 1981 March 1981 May 1982 March 1982 April 1982 November 1983 March 1983 November 1984 September 1985 February 1986 April 1986 June 1987 February 1987 March 1987 July 1988 June 1991 June
1983 July