1967 12  5.13  -4.06    .53 
1970 01 -2.02 -11.72  -6.87 
1970 12  2.98  -4.28   -.65 
1971 01  -.37 -10.26  -5.31 
1972 03  6.88  -3.33   1.77 
1972 12  4.79  -1.30   1.74 
1973 01  4.28  -5.58   -.64 
1973 02  2.94  -7.59  -2.32 
1973 08 29.97  18.08  24.02 
1973 09 24.87 -99.99 -99.99 
1973 10 19.85   6.19  13.02 
1973 11 12.28   2.25   7.26 
1973 12  6.42  -2.57   1.92 
1974 01  4.13  -5.16   -.51 
1974 02  2.79  -7.61  -2.41 
1974 03  8.81  -1.49   3.66 
1974 04 16.99   4.48  10.73 
1974 05 21.94   9.37  15.65 
1974 06 25.98  14.50  20.24 
1974 09 23.45  11.99  17.72 
1974 11 12.05   1.62   6.83 
1974 12  5.91  -1.84   2.03 
1975 01  4.66  -3.83    .41 
1975 02  4.34  -3.79    .27 
1975 04 13.29   1.58   7.43 
1975 05 24.80  12.70  18.75 
1975 06 27.25  16.83  22.04 
1975 07 30.72  18.19  24.45 
1975 08 29.33 -99.99 -99.99 
1975 09 21.63 -99.99 -99.99 
1975 10 19.31   8.78  14.04 
1975 11 14.59   3.31   8.95 
1975 12  4.54  -3.69    .42 
1976 01   .26 -99.99 -99.99 
1976 02  7.07  -4.91   1.08 
1976 03 12.16 -99.99 -99.99 
1976 04 18.50   5.85  12.17 
1976 05 22.26   9.18  15.72 
1976 07 28.07  16.51  22.29 
1976 08 28.24  16.29  22.26 
1976 09 23.72 -99.99 -99.99 
1976 10 14.49   4.05   9.27 
1976 11  8.60  -1.17   3.71 
1977 05 25.63  10.00  17.81 
1977 06 26.78  14.27  20.52 
1977 07 31.22  17.60  24.41 
1977 08 29.11  16.61  22.86 
1978 05 18.19   8.84  13.51 
1978 06 25.32  12.70  19.01 
1978 07 27.40 -99.99 -99.99 
1978 09 22.99 -99.99 -99.99 
1978 10 17.64 -99.99 -99.99 
1978 12  5.86  -3.07   1.39 
1979 01  3.14  -5.51  -1.18 
