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   0.27   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   0.65   2.74 
1988 01   5.48   0.16   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   0.94   3.07 
1989 02   4.94  -3.04   0.95 
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 
