1928 07 14.77   6.59  10.68 
1928 10  2.03  -5.66  -1.81 
1928 11 -5.32 -10.90  -8.10 
1928 12 -9.35 -17.52 -13.44 
1929 01 -3.12  -9.60  -6.36 
1929 02 -4.98 -12.08  -8.53 
1929 03 10.49 -21.16 -15.82 
1929 04  -.94 -10.85  -5.89 
1929 05  9.26    .67   4.96 
1966 11 -3.22 -10.69  -6.95 
1966 12 13.51 -22.99 -18.25 
1967 01 -8.43 -20.51 -14.47 
1967 02 -8.30 -20.20 -14.25 
1967 03   . 7 -11.89  -5.91 
1967 04  3.32  -3.97   -.32 
1967 05 12.10    .43   6.26 
1967 06 17.85   7.57  12.71 
1967 07 17.29   7.76  12.53 
1967 08 17.12   8.20  12.66 
1967 09 12.96   2.52   7.74 
1967 10  1.32  -6.18  -2.42 
1967 11 -3.43 -10.07  -6.75 
1967 12 -9.24 -17.77 -13.50 
1968 01 -9.21 -18.32 -13.76 
1968 02 11.73 -20.81 -16.27 
1968 03 -2.93 -15.84  -9.38 
1968 04  1.02  -9.39  -4.18 
1968 05 10.85   -.57   5.14 
1968 06 18.86   5.36  12.11 
1968 07 21.18   9.93  15.55 
1968 08 17.81   7.55  12.68 
1968 09 11.40   -.92   5.24 
1968 10   .83  -6.49  -2.83 
1968 11 -6.78 -14.32 -10.55 
1968 12 14.79 -24.77 -19.78 
1969 01 11.94 -19.12 -15.53 
1969 02 -8.74 -19.44 -14.09 
1969 03 -2.85 -13.69  -8.26 
1969 04  3.89  -6.75  -1.43 
1969 05 14.31   1.81   8.06 
1969 06 17.35   6.00  11.67 
1969 07 17.54   7.70  12.62 
1969 08 14.96   4.75   9.85 
1969 09 14.43   2.88   8.65 
1969 10  5.18  -1.92   1.62 
1969 11 -8.87 -17.01 -12.94 
1969 12 -6.31 -15.78 -11.04 
1970 01 18.51 -28.26 -23.38 
1970 02 -5.47 -15.05 -10.26 
1970 03 -2.47 -11.97  -7.22 
1970 04   .32  -9.78  -4.73 
1970 05 14.18    .78   7.48 
1970 06 18.34   5.53  11.93 
1970 07 16.90   6.86  11.88 
1970 08 15.73   5.57  10.65 
1970 09 10.42   -.45   4.98 
1970 11   .63  -7.97  -3.66 
1970 12 11.77 -22.27 -17.02 
1971 01 17.14 -28.59 -22.86 
1971 02 13.89 -25.47 -19.68 
1971 03 10.30 -25.88 -18.09 
1971 04 -1.19 -13.13  -7.16 
1971 05  5.87  -2.74   1.56 
1971 06 16.62 -99.99 -99.99 
1971 10  2.47  -5.81  -1.67 
1971 11 -5.71 -15.04 -10.37 
1971 12 -8.83 -19.73 -14.28 
1972 01 13.08 -23.06 -18.07 
1972 02 10.39 -21.52 -15.95 
1972 03 10.48 -25.36 -17.92 
1972 04 -2.36 -13.50  -7.93 
1972 05  8.59  -1.03   3.78 
1972 06 15.23   4.73   9.98 
1972 07 20.82   9.41  15.11 
1972 08 18.32   8.22  13.27 
1972 09 11.11   2.04   6.57 
1972 10  4.31  -2.15   1.07 
1972 11 -5.45 -13.28  -9.36 
1972 12 -9.97 -16.31 -13.14 
1973 01 17.98 -30.89 -24.43 
1973 05  5.05  -1.51   1.77 
1973 06 12.56   3.66   8.11 
1973 07 17.28   5.37  11.32 
1973 08 15.30   4.77  10.03 
1973 09 11.58   1.65   6.61 
1973 10  1.61  -6.80  -2.59 
1973 11 -4.19 -15.37  -9.78 
1973 12 11.26 -21.09 -16.17 
1974 01 11.70 -21.18 -16.44 
1974 02 18.75 -29.95 -24.35 
1974 04  1.86  -7.79  -2.96 
1974 05 12.85    . 0   6.42 
1974 06 17.92   3.49  10.70 
1974 07 17.39   6.75  12.07 
1974 08 17.61   6.79  12.20 
1974 09 14.74   2.72   8.72 
1974 10  -.52  -8.56  -4.54 
1975 04  -.92 -12.18  -6.55 
1975 05  9.24 -99.99 -99.99 
1975 06 16.46   5.01  10.74 
1975 07 18.98   7.30  13.14 
1975 08 16.20   5.99  11.10 
1975 09  9.41    .69   5.04 
1975 10  2.72  -5.37  -1.32 
1976 06 15.36   4.63   9.99 
1976 07 18.26   6.99  12.62 
1976 08 17.62 -99.99 -99.99 
1976 09 11.70 -99.99 -99.99 
1976 10  2.73  -6.74  -2.00 
1976 11 -3.81 -14.65  -9.22 
1976 12 10.90 -99.99 -99.99 
1977 01 -2.16 -13.03  -7.59 
1977 02 -4.96 -15.52 -10.24 
1977 04 -3.38 -17.18 -10.28 
1977 05  6.96  -1.95   2.50 
1977 06 17.89   6.16  12.02 
1977 07 18.62   7.68  13.15 
1977 08 19.76   8.95  14.35 
1977 09 14.24 -99.99 -99.99 
1977 10  3.26  -6.84  -1.79 
1977 12 10.33 -21.06 -15.69 
1978 01 -3.76 -13.45  -8.60 
1978 02 -6.61 -16.14 -11.37 
1978 03 -3.79 -15.87  -9.83 
1978 05 13.50   1.04   7.27 
1978 06 12.97   4.37   8.67 
1978 07 18.29   7.36  12.82 
1978 08 19.36   8.78  14.07 
1978 09 12.92   2.35   7.64 
1978 10  1.07  -7.56  -3.24 
1978 12 -3.81 -14.09  -8.95 
1979 01 -4.31 -11.92  -8.11 
1979 02 15.22 -99.99 -99.99 
1979 03 -4.64 -99.99 -99.99 
1979 04  2.94  -4.55   -.80 
1979 05 13.34    .80   7.07 
1979 06 15.00   5.11  10.05 
1979 07 17.86   5.25  11.55 
1979 08 15.89   7.62  11.75 
1979 09 12.63    .61   6.62 
1979 10  5.23 -99.99 -99.99 
1979 11  -.94  -9.35  -5.14 
1979 12 15.97 -28.92 -22.44 
1980 01 13.94 -28.65 -21.29 
1980 02 -5.67 -99.99 -99.99 
1980 03 -1.02 -99.99 -99.99 
1980 04  4.76 -99.99 -99.99 
1980 05 11.03 -99.99 -99.99 
1980 06 11.52   3.88   7.70 
1980 07 17.87   7.96  12.91 
1980 08 15.27 -99.99 -99.99 
1980 09 11.13 -99.99 -99.99 
1980 10  3.51  -5.30   -.89 
1980 11 -4.52 -11.22  -7.87 
1980 12 14.13 -23.85 -18.99 
1981 01 -2.85 -13.17  -8.01 
1981 02 -6.76 -17.66 -12.21 
1981 03  1.87  -6.67  -2.40 
1981 04  3.54  -5.63  -1.04 
1981 05 14.53   2.99   8.76 
1981 06 17.11   5.14  11.12 
1981 07 15.41   7.15  11.28 
1981 08 16.08   5.55  10.81 
1981 09 11.19    .87   6.03 
1981 10  2.28  -5.47  -1.59 
1981 11 -5.64 -13.20  -9.42 
1981 12 12.40 -22.30 -17.34 
1982 01 -9.76 -99.99 -99.99 
1982 02 -8.43 -19.25 -13.84 
1982 03 -4.54 -15.37  -9.95 
1982 04 -1.49 -15.06  -8.27 
1982 05  8.14  -2.49   2.83 
1982 06 15.03   4.79   9.91 
1982 07 16.19   7.16  11.67 
1982 08 16.24   5.37  10.80 
1982 09 10.49   2.07   6.28 
1982 10  -.56  -9.54  -5.05 
1982 11 -3.93 -16.07 -10.00 
1982 12 -8.53 -99.99 -99.99 
1983 01 14.31 -99.99 -99.99 
1983 02 -8.82 -17.84 -13.33 
1983 03 -3.69 -25.77 -14.73 
1983 04  2.08 -10.06  -3.98 
1983 05 12.21   1.30   6.75 
1983 06 17.93   5.43  11.68 
1983 07 17.62   8.06  12.84 
1983 08 14.06   4.83   9.44 
1983 09  9.57   -.19   4.69 
1983 10  -.41  -8.58  -4.49 
1983 11 -3.52 -11.61  -7.56 
1983 12 -4.44 -12.03  -8.24 
1984 01 12.05 -20.74 -16.39 
1984 02 20.55 -31.04 -25.79 
1984 03  -.95 -12.81  -6.88 
1984 04   .39 -27.21 -13.41 
1984 05  9.49 -15.84  -3.17 
1984 06 15.00   3.99   9.49 
1984 07 12.62   7.14   9.88 
1984 09  7.64   1.76   4.69 
1984 10 -2.13  -6.89  -4.51 
1984 11 11.01 -15.47 -13.24 
1984 12 -6.00 -14.93 -10.46 
1985 01 -2.33  -8.92  -5.62 
1985 02 15.25 -20.99 -18.11 
1985 03 -7.47 -16.83 -12.15 
1985 04 -6.07 -18.26 -12.16 
1985 05  4.44   -.86   1.79 
1985 06  8.84   3.04   5.94 
1985 08  8.62   5.58   7.10 
1985 09  4.58    .34   2.46 
1985 10 -1.87  -8.87  -5.37 
1985 11 -4.28 -13.70  -8.99 
1985 12 -1.69 -10.39  -6.04 
1986 01 11.21 -20.00 -15.60 
1986 02 -4.50 -13.79  -9.14 
1986 03 -6.33 -17.94 -12.13 
1986 04 -1.21 -12.94  -7.07 
1986 07 18.12   6.63  12.37 
1986 08 13.13   4.88   9.00 
1986 09  9.63   2.08   5.85 
1986 10   .55  -7.69  -3.57 
1986 11 -4.48 -12.00  -8.24 
1986 12 -3.36 -11.30  -7.33 
1987 01 -7.47 -19.65 -13.56 
1987 02 -6.96 -20.10 -13.53 
1987 03 -2.27 -14.13  -8.20 
1987 05  9.34  -1.38   3.98 
1987 06 16.08   3.50   9.79 
1987 07 17.23   6.70  11.96 
1987 08 18.12   5.56  11.84 
1987 09  8.78  -2.33   3.22 
1987 10  4.92  -3.87    .52 
