1976 04  7.48 -99.99 -99.99 
1976 06 24.84 -99.99 -99.99 
1977 03 -2.54 -99.99 -99.99 
1978 03 -4.12 -99.99 -99.99 
1978 04  5.92 -99.99 -99.99 
1980 09 14.59 -99.99 -99.99 
1980 10  2.73 -99.99 -99.99 
1981 05 18.74 -99.99 -99.99 
1981 06 21.84 -99.99 -99.99 
1981 08 20.11 -99.99 -99.99 
1981 09 16.04 -99.99 -99.99 
1981 11 -9.04 -99.99 -99.99 
1983 05 13.57 -99.99 -99.99 
1983 06 21.73 -99.99 -99.99 
1983 07 23.13 -99.99 -99.99 
1984 05 14.59 -99.99 -99.99 
1984 06 23.54 -99.99 -99.99 
1984 08 23.30 -99.99 -99.99 
1984 10   .70 -99.99 -99.99 
1985 04  5.03 -99.99 -99.99 
1985 05 13.64 -99.99 -99.99 
1985 10  5.35 -99.99 -99.99 
1986 05 13.90 -99.99 -99.99 
1986 06 22.76 -99.99 -99.99 
1986 07 25.81 -99.99 -99.99 
1986 08 20.50 -99.99 -99.99 
1986 09 16.86 -99.99 -99.99 
1986 10  6.06 -99.99 -99.99 
1987 04  4.48 -99.99 -99.99 
1987 05 15.38 -99.99 -99.99 
1987 06 18.18 -99.99 -99.99 
1987 07 23.84 -99.99 -99.99 
1987 08 21.58 -99.99 -99.99 
1988 03 -3.18 -99.99 -99.99 
1988 05 13.87 -99.99 -99.99 
1988 07 20.77 -99.99 -99.99 
1988 08 21.90 -99.99 -99.99 
1988 09 17.12 -99.99 -99.99 
1988 10  7.17 -99.99 -99.99 
1989 06 20.19 -99.99 -99.99 
1989 09 14.01 -99.99 -99.99 
1989 10  7.21 -99.99 -99.99 
1990 03  4.53 -99.99 -99.99 
1990 04  7.93 -99.99 -99.99 
1991 03 -4.57 -99.99 -99.99 
1991 05 15.09 -99.99 -99.99 
1993 09 13.49 -99.99 -99.99 
1994 05 16.53 -99.99 -99.99 
1994 07 26.65 -99.99 -99.99 
