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1989
    Apr 12-Apr 26 Apr 27-May 11
    May 12-May 26 May 27-Jun 10
1991
    Apr 30-May 14 May 15-May 29
    May 30-Jun 13 Jun 14-Jun 28
    Jun 29-Jul 13 Jul 14-Jul 28
    Jul 29-Aug 12 Aug 13-Aug 27
    Aug 28-Sep 11