1966 08 99.99 -99.99  -5.20 
1966 09 99.99 -99.99  -5.00 
1966 10 99.99 -99.99  -3.10 
1966 11 99.99 -99.99   -.80 
1966 12 99.99 -99.99    .20 
1967 01 99.99 -99.99   -.30 
1967 02 99.99 -99.99   -.30 
1967 03 99.99 -99.99    .60 
1967 06 99.99 -99.99  -6.60 
1967 07 99.99 -99.99  -5.60 
1967 08 99.99 -99.99  -4.50 
1967 09 99.99 -99.99  -4.10 
1967 10 99.99 -99.99  -2.80 
1967 11 99.99 -99.99  -1.50 
1967 12 99.99 -99.99  -2.80 
1969 12 99.99 -99.99    . 0 
1971 10 99.99 -99.99  -2.50 
1972 02 99.99 -99.99    .10 
1972 03 99.99 -99.99  -2.20 
1972 04 99.99 -99.99  -5.60 
1972 05 99.99 -99.99  -5.30 
1972 06 99.99 -99.99 -10.00 
1972 07 99.99 -99.99  -8.30 
1972 08 99.99 -99.99 -10.40 
1972 09 99.99 -99.99   4.50 
1973 02 99.99 -99.99   -.20 
1973 04 99.99 -99.99  -4.80 
1973 05 99.99 -99.99  -8.20 
1973 06 99.99 -99.99 -11.50 
1973 09 99.99 -99.99  -8.20 
1973 10 99.99 -99.99  -2.60 
1973 12 99.99 -99.99    .10 
1974 01 99.99 -99.99    .10 
1974 03 99.99 -99.99   1.10 
1974 04 99.99 -99.99  -6.20 
1974 05 99.99 -99.99  -6.30 
1974 06 99.99 -99.99  -8.10 
1974 07 99.99 -99.99  -7.40 
1974 08 99.99 -99.99  -8.20 
1974 09 99.99 -99.99  -6.60 
1974 10 99.99 -99.99  -2.70 
1974 11 99.99 -99.99  -1.50 
1974 12 99.99 -99.99    .40 
1975 01 99.99 -99.99    .50 
1975 02 99.99 -99.99    .50 
1975 03 99.99 -99.99  -2.00 
1975 04 99.99 -99.99  -2.80 
1975 05 99.99 -99.99  -7.60 
1975 06 99.99 -99.99 -10.20 
1975 07 99.99 -99.99 -10.00 
1975 08 99.99 -99.99  -9.70 
1975 09 99.99 -99.99  -5.40 
1975 10 99.99 -99.99  -2.20 
1975 11 99.99 -99.99  -1.70 
1975 12 99.99 -99.99    . 0 
1976 01 99.99 -99.99   -.30 
1976 02 99.99 -99.99    .70 
1976 03 99.99 -99.99   -.70 
1976 04 99.99 -99.99  -2.60 
1976 05 99.99 -99.99  -4.90 
1976 06 99.99 -99.99  -6.00 
1976 07 99.99 -99.99 -11.80 
1976 08 99.99 -99.99  -9.20 
1976 10 99.99 -99.99  -2.30 
1976 11 99.99 -99.99   -.60 
1976 12 99.99 -99.99   -.30 
1977 01 99.99 -99.99    .40 
1977 02 99.99 -99.99    .10 
1977 03 99.99 -99.99  -1.20 
1977 04 99.99 -99.99  -2.80 
1977 06 99.99 -99.99  -6.70 
1977 07 99.99 -99.99  -8.60 
1977 08 99.99 -99.99  -9.00 
1977 09 99.99 -99.99  -9.60 
