1970 02 10.68 -99.99 -99.99 
1970 04 13.17 -99.99 -99.99 
1970 06 23.49 -99.99 -99.99 
1970 07 23.77 -99.99 -99.99 
1970 08 23.12 -99.99 -99.99 
1970 09 18.56 -99.99 -99.99 
1970 10 13.68   5.14   9.41 
1971 01  4.25   -.85   1.70 
1971 02  6.76   1.11   3.93 
1971 03  8.35    .27   4.31 
1971 04 13.72   3.48   8.60 
1971 05 18.98   7.28  13.13 
1971 06 17.06   9.78  13.42 
1971 07 25.25  12.01  18.63 
1971 08 25.00 -99.99 -99.99 
1971 10 99.99   6.01 -99.99 
1971 12  2.33 -99.99 -99.99 
1972 01  2.60 -99.99 -99.99 
1972 02  7.11 -99.99 -99.99 
1972 03 10.29   3.42   6.85 
1972 04 11.42 -99.99 -99.99 
1972 05 19.09   8.63  13.86 
1972 06 19.46  10.69  15.08 
1972 08 25.04  13.32  19.18 
1972 10 14.24   5.08   9.66 
1973 02  9.35 -99.99 -99.99 
1973 03 10.40 -99.99 -99.99 
1973 04 15.06   3.79   9.42 
1986 06 21.93  11.50  16.71 
1986 07 21.15  11.89  16.52 
1986 08 26.48  13.89  20.18 
1986 09 19.79  10.35  15.07 
1986 10 16.34   7.23  11.78 
1986 11  8.50   3.65   6.07 
1986 12  6.32   1.90   4.11 
1987 01  6.18   1.61   3.89 
1987 02 10.02   3.00   6.51 
1987 03 12.61   4.15   8.38 
1987 04 15.87   6.02  10.94 
1987 05 18.79   8.37  13.58 
1987 06 22.78  11.02  16.90 
1987 07 22.74  13.06  17.90 
1987 08 24.95  12.00  18.47 
1987 09 22.58  10.83  16.70 
1987 10 17.62   6.27  11.95 
1987 11 10.35   5.50   7.92 
1987 12  4.84    .65   2.74 
1988 01  5.48    .16   2.82 
1988 02  8.64   1.78   5.21 
1988 03 10.77   2.97   6.87 
1988 04 14.45   5.73  10.09 
1988 05 17.50   8.21  12.85 
1988 06 20.46  10.43  15.45 
1988 07 24.08  12.29  18.18 
1988 08 23.66  12.73  18.19 
1988 09 20.60   9.47  15.04 
1988 10 15.26   8.81  12.03 
1988 11  8.70   4.80   6.75 
1988 12  6.15   2.06   4.10 
1989 01  5.21    .94   3.07 
1989 02  4.94  -3.04    .95 
1989 03  9.56   2.29   5.92 
1989 04 17.10   5.87  11.48 
1989 05 17.50   8.31  12.90 
1989 06 22.75  11.62  17.18 
1989 07 22.97  12.63  17.79 
1989 08 22.16  13.00  17.58 
1989 09 23.04  10.00  16.52 
