1975 06 99.99 -99.99   9.80 
1975 07 99.99 -99.99  13.40 
1975 08 99.99 -99.99  11.20 
1975 09 99.99 -99.99   8.60 
1975 10 99.99 -99.99   1.00 
1975 11 99.99 -99.99 -11.30 
1975 12 99.99 -99.99 -14.70 
1976 01 99.99 -99.99 -15.30 
1976 02 99.99 -99.99 -14.00 
1976 03 99.99 -99.99  -5.80 
1976 04 99.99 -99.99   1.70 
1976 05 99.99 -99.99   5.40 
1976 06 99.99 -99.99   9.50 
1976 07 99.99 -99.99  11.00 
1976 09 99.99 -99.99   7.80 
1976 10 99.99 -99.99    .70 
1976 11 99.99 -99.99  -6.20 
1976 12 99.99 -99.99 -13.70 
1977 01 99.99 -99.99 -11.70 
1977 02 99.99 -99.99  -4.60 
1977 03 99.99 -99.99  -5.50 
1977 04 99.99 -99.99   2.50 
1977 05 99.99 -99.99   6.50 
1977 06 99.99 -99.99  10.20 
1977 07 99.99 -99.99  13.50 
1977 08 99.99 -99.99  14.40 
1977 09 99.99 -99.99   7.20 
1977 10 99.99 -99.99   1.40 
1977 11 99.99 -99.99 -12.50 
1978 01 99.99 -99.99 -21.10 
1978 02 99.99 -99.99 -11.00 
1978 03 99.99 -99.99  -5.70 
1978 04 99.99 -99.99   2.09 
