1956 07 24.80 -99.99 -99.99 
1969 03 -7.36 -99.99 -99.99 
1969 04  5.08 -99.99 -99.99 
1969 05 13.93 -99.99 -99.99 
1969 06 22.64 -99.99 -99.99 
1969 07 24.85 -99.99 -99.99 
1969 08 23.19 -99.99 -99.99 
1969 09 13.69 -99.99 -99.99 
1969 10  4.56 -99.99 -99.99 
1970 02 16.16 -99.99 -99.99 
1970 03 -7.24 -99.99 -99.99 
1970 04  6.31 -99.99 -99.99 
1970 05 16.01 -99.99 -99.99 
1970 06 24.59 -99.99 -99.99 
1970 07 26.43 -99.99 -99.99 
1970 08 23.81 -99.99 -99.99 
1970 09 14.08 -99.99 -99.99 
1970 10  2.54 -99.99 -99.99 
1970 11 -9.18 -99.99 -99.99 
1971 02 13.07 -99.99 -99.99 
1971 03 -5.02 -99.99 -99.99 
1971 04  4.29 -99.99 -99.99 
1971 05 14.96 -99.99 -99.99 
1971 06 26.29 -99.99 -99.99 
1973 02 14.60 -99.99 -99.99 
1973 03 -3.65 -99.99 -99.99 
1973 04  2.93 -99.99 -99.99 
1973 06 25.96 -99.99 -99.99 
1973 08 21.50 -99.99 -99.99 
1973 09 20.68 -99.99 -99.99 
1973 10  6.04 -99.99 -99.99 
1974 01 21.58 -99.99 -99.99 
1975 02 14.00 -99.99 -99.99 
1975 03  -.68 -99.99 -99.99 
1975 05 19.53 -99.99 -99.99 
1975 07 26.59 -99.99 -99.99 
1975 08 22.52 -99.99 -99.99 
1975 09 15.25 -99.99 -99.99 
1976 02 15.70 -99.99 -99.99 
1976 10  4.03 -99.99 -99.99 
1976 11 12.76 -99.99 -99.99 
1977 03 -3.35 -99.99 -99.99 
1977 04  5.24 -99.99 -99.99 
1977 08 23.85 -99.99 -99.99 
1977 09 15.15 -99.99 -99.99 
1977 11 12.72 -99.99 -99.99 
1979 10  3.33 -99.99 -99.99 
1980 04  1.20 -99.99 -99.99 
1980 05 13.44 -99.99 -99.99 
1980 08 24.41 -99.99 -99.99 
1980 09 16.56 -99.99 -99.99 
1980 10  3.86 -99.99 -99.99 
1980 12 17.85 -99.99 -99.99 
1981 01 22.54 -99.99 -99.99 
1981 02 14.83 -99.99 -99.99 
1981 03 -5.56 -99.99 -99.99 
1981 04  9.00 -99.99 -99.99 
1981 09 14.20 -99.99 -99.99 
1981 10  5.00 -99.99 -99.99 
1985 03 -4.73 -99.99 -99.99 
1985 05 15.57 -99.99 -99.99 
1985 09 16.49 -99.99 -99.99 
1985 10  5.18 -99.99 -99.99 
1986 02 10.97 -99.99 -99.99 
1986 03  -.91 -99.99 -99.99 
1986 04  6.07 -99.99 -99.99 
1986 05 15.30 -99.99 -99.99 
1987 02 16.08 -99.99 -99.99 
1987 03 -5.29 -99.99 -99.99 
1987 04  4.13 -99.99 -99.99 
1987 09 14.08 -99.99 -99.99 
1987 10  4.23 -99.99 -99.99 
1987 11 14.84 -99.99 -99.99 
1988 02 16.70 -99.99 -99.99 
1988 03 -5.18 -99.99 -99.99 
1988 04  8.29 -99.99 -99.99 
1989 02 10.52 -99.99 -99.99 
1989 06 23.10 -99.99 -99.99 
1991 06 24.39 -99.99 -99.99 
