1986 February 03-1987 April 13

1987 April 20-1988 February 23

1988 February 26-1989 February 14

1989 February 21-November 21

1989 November 28-1990 December 4

1991 January 22-June 18

1991 July 16-1993 October 19

1993 October 26-1994 June 14

1995 July 11-1999 July 6