1973 03 99.99 -99.99  -7.00 
1973 04 99.99 -99.99   4.90 
1973 05 99.99 -99.99   4.90 
1973 06 99.99 -99.99  12.10 
1973 07 99.99 -99.99  13.30 
1973 08 99.99 -99.99  11.60 
1973 09 99.99 -99.99   7.60 
1973 10 99.99 -99.99  -1.30 
1973 11 99.99 -99.99  -6.50 
1973 12 99.99 -99.99 -12.70 
1974 01 99.99 -99.99 -15.80 
1974 02 99.99 -99.99 -17.90 
1974 03 99.99 -99.99 -10.10 
1974 04 99.99 -99.99   2.09 
1974 05 99.99 -99.99   8.39 
1974 06 99.99 -99.99  12.60 
1974 07 99.99 -99.99  14.70 
1974 08 99.99 -99.99  13.60 
1974 09 99.99 -99.99   4.80 
1974 10 99.99 -99.99  -3.10 
1974 11 99.99 -99.99  -8.80 
1974 12 99.99 -99.99 -19.40 
1975 01 99.99 -99.99 -13.50 
1975 02 99.99 -99.99 -12.20 
1975 03 99.99 -99.99  -6.90 
1975 04 99.99 -99.99  -4.50 
1975 05 99.99 -99.99   4.69 
1975 06 99.99 -99.99  11.90 
1975 07 99.99 -99.99  13.30 
1975 08 99.99 -99.99  14.00 
1975 09 99.99 -99.99   7.20 
1975 10 99.99 -99.99   -.40 
1975 11 99.99 -99.99  -8.30 
1975 12 99.99 -99.99 -15.60 
1976 01 99.99 -99.99 -15.30 
1976 02 99.99 -99.99 -11.30 
1976 03 99.99 -99.99 -11.30 
1976 04 99.99 -99.99  -1.50 
1976 05 99.99 -99.99   6.40 
1976 06 99.99 -99.99  12.60 
1976 07 99.99 -99.99  12.60 
1976 08 99.99 -99.99  10.80 
1976 09 99.99 -99.99   6.50 
1976 10 99.99 -99.99    .40 
1976 11 99.99 -99.99 -11.90 
1976 12 99.99 -99.99 -17.10 
1977 01 99.99 -99.99 -21.00 
1977 02 99.99 -99.99 -13.60 
1977 03 99.99 -99.99  -7.80 
1977 04 99.99 -99.99  -2.00 
1977 05 99.99 -99.99   4.10 
1977 06 99.99 -99.99  12.50 
1977 07 99.99 -99.99  12.90 
1977 08 99.99 -99.99  14.30 
1977 09 99.99 -99.99   9.20 
1977 10 99.99 -99.99   1.30 
1977 11 99.99 -99.99  -9.50 
1977 12 99.99 -99.99 -11.80 
1978 01 99.99 -99.99 -16.70 
1978 02 99.99 -99.99 -15.00 
1978 03 99.99 -99.99  -8.30 
1978 04 99.99 -99.99   2.80 
1978 05 99.99 -99.99   6.70 
1978 06 99.99 -99.99  13.20 
1978 07 99.99 -99.99  13.20 
1978 08 99.99 -99.99  16.50 
1978 09 99.99 -99.99   7.80 
1978 10 99.99 -99.99   -.70 
1978 11 99.99 -99.99  -7.20 
1978 12 99.99 -99.99 -10.10 
1979 01 99.99 -99.99 -13.50 
1979 02 99.99 -99.99  -7.80 
1979 03 99.99 -99.99  -9.70 
1979 04 99.99 -99.99  -1.40 
1979 05 99.99 -99.99   6.30 
1979 06 99.99 -99.99  13.40 
1979 07 99.99 -99.99  13.40 
1979 08 99.99 -99.99  11.50 
1979 09 99.99 -99.99   5.60 
1979 10 99.99 -99.99   1.90 
1979 11 99.99 -99.99 -10.20 
1979 12 99.99 -99.99 -12.00 
1980 01 99.99 -99.99 -17.29 
1980 02 99.99 -99.99 -14.90 
1980 03 99.99 -99.99 -11.30 
1980 04 99.99 -99.99  -1.80 
1980 05 99.99 -99.99   7.50 
1980 06 99.99 -99.99  11.90 
1980 07 99.99 -99.99  14.40 
1980 08 99.99 -99.99  13.90 
1980 09 99.99 -99.99   8.39 
1980 10 99.99 -99.99  -1.70 
1980 11 99.99 -99.99  -4.90 
1980 12 99.99 -99.99 -13.00 
1981 01 99.99 -99.99 -18.20 
1981 02 99.99 -99.99 -14.90 
1981 03 99.99 -99.99  -5.20 
1981 04 99.99 -99.99   2.09 
1981 05 99.99 -99.99   7.20 
1981 06 99.99 -99.99  13.70 
1981 07 99.99 -99.99  15.00 
1981 08 99.99 -99.99  11.00 
1981 09 99.99 -99.99   7.10 
1981 10 99.99 -99.99  -5.60 
1981 11 99.99 -99.99 -13.40 
1981 12 99.99 -99.99 -15.20 
1982 01 99.99 -99.99 -12.20 
1982 02 99.99 -99.99 -13.10 
1982 03 99.99 -99.99  -7.30 
1982 04 99.99 -99.99   1.00 
1982 05 99.99 -99.99   7.60 
1982 06 99.99 -99.99  12.20 
1982 07 99.99 -99.99  13.70 
1982 08 99.99 -99.99  12.10 
1982 09 99.99 -99.99   6.80 
1982 10 99.99 -99.99   2.09 
1982 11 99.99 -99.99  -8.80 
1982 12 99.99 -99.99 -14.40 
1983 01 99.99 -99.99 -14.50 
1983 02 99.99 -99.99 -13.40 
1983 03 99.99 -99.99  -7.30 
1983 04 99.99 -99.99  -2.90 
1983 05 99.99 -99.99   7.00 
1983 06 99.99 -99.99   9.89 
1983 07 99.99 -99.99  13.70 
1983 08 99.99 -99.99  12.20 
