1979 11  7.51  -1.54   2.98 
1979 12 -2.78 -10.33  -6.55 
1981 02  -.79 -11.75  -6.27 
1981 03  4.23  -7.44  -1.60 
1981 04 12.16    .60   6.38 
1981 05 18.29   5.35  11.82 
1981 06 20.99   9.28  15.13 
1981 07 23.67  11.75  17.70 
1981 08 23.24  11.89  17.56 
1981 09 16.35   7.85  12.10 
1981 10  8.70   -.47   4.11 
1981 11  3.18  -4.26   -.54 
1981 12 -2.16  -8.56  -5.36 
1982 02 -3.01 -99.99 -99.99 
1982 03  2.58 -99.99 -99.99 
1982 04  7.57 -99.99 -99.99 
1982 06 18.48 -99.99 -99.99 
1982 07 23.35 -99.99 -99.99 
1982 10 13.14 -99.99 -99.99 
1982 11  6.52 -99.99 -99.99 
1983 02   .47 -99.99 -99.99 
1983 03  3.80 -99.99 -99.99 
1983 04  7.94 -99.99 -99.99 
1983 05 14.95 -99.99 -99.99 
1983 06 22.26  10.52  16.39 
1983 08 23.38 -99.99 -99.99 
1983 09 20.58   9.39  14.99 
1983 10 12.93 -99.99 -99.99 
1983 11 99.99  -2.13 -99.99 
1984 01 -4.16 -99.99 -99.99 
1984 02 99.99  -7.95 -99.99 
1984 03 -1.14 -99.99 -99.99 
1984 04 10.73   1.42   6.07 
1984 05 15.16   4.33   9.74 
1984 06 22.22 -99.99 -99.99 
1984 10 14.64 -99.99 -99.99 
1985 02 -4.06 -99.99 -99.99 
1985 04 11.64 -99.99 -99.99 
1985 05 17.43   5.70  11.56 
1985 06 19.03   7.27  13.15 
1985 07 23.30  12.27  17.78 
1985 08 23.38 -99.99 -99.99 
1985 09 20.12 -99.99 -99.99 
1985 10 14.49   2.13   8.30 
1985 11  7.25  -1.52   2.86 
1985 12 -2.72 -10.24  -6.48 
1986 01 -1.48 -13.41  -7.44 
1986 02 -1.57 -12.24  -6.90 
1986 03  7.11 -99.99 -99.99 
1986 04 13.01   2.34   7.68 
1986 05 19.19   8.30  13.74 
1986 06 20.28   8.41  14.34 
1986 07 23.36  12.74  18.04 
1986 08 19.77  11.19  15.48 
1986 09 16.52   7.78  12.15 
1986 10 12.19   2.27   7.22 
1986 11  3.90  -4.21   -.15 
1986 12  -.45  -7.48  -3.96 
1987 01 -3.25 -11.99  -7.62 
1987 02 -4.55 -13.71  -9.13 
1987 03  5.24  -4.33    .45 
1987 04 12.74   2.15   7.44 
1987 05 18.77 -99.99 -99.99 
1987 06 20.79  11.41  16.10 
