a@DATEC YR1981N YR1986N YR1987N YR1988N YR1989N YR1990N Jan 1 0 0 0 0 0 0 Jan 15 0 0 0 22 3 0 Feb 1 0 0 0 140 1 0 Feb 15 85 0 981 3380 2 0 mar 1 1901 619 31 6868 822 0 Mar 15 31865 2072 0 6776 1207 0 Apr 1 12052 1959 151 11562 734 0 Apr 15 10120 1196 0 7283 1372 0 May 1 911 0 0 4151 0 0 May 15 2409 0 0 273 0 0 Jun 1 0 0 0 6 0 0 Jun 15 0 0 0 21 0 0 july 1 0 0 0 0 0 0 Jul 15 0 0 0 0 0 0 Aug 1 0 0 0 0 0 0 Aug 15 0 0 0 0 0 0 Sept 1 0 0 0 0 0 0 Sept 15 0 0 0 0 0 0