1979 11 99.99 -99.99  -9.10 
1979 12 99.99 -99.99 -21.20 
1980 01 99.99 -99.99 -25.60 
1980 02 99.99 -99.99 -12.60 
1980 03 99.99 -99.99 -12.20 
1980 04 99.99 -99.99   -.40 
1980 05 99.99 -99.99   6.00 
1980 10 99.99 -99.99  -1.10 
1980 11 99.99 -99.99  -8.70 
1980 12 99.99 -99.99 -33.30 
1981 01 99.99 -99.99  -8.30 
1981 02 99.99 -99.99 -16.90 
1981 03 99.99 -99.99  -7.20 
1981 04 99.99 -99.99  -8.20 
1981 05 99.99 -99.99   7.90 
1981 06 99.99 -99.99   7.40 
1981 07 99.99 -99.99  12.00 
1981 11 99.99 -99.99 -10.60 
1982 01 99.99 -99.99 -36.09 
1982 02 99.99 -99.99 -23.00 
1982 03 99.99 -99.99 -16.50 
1982 04 99.99 -99.99  -6.50 
1982 05 99.99 -99.99   2.70 
1982 07 99.99 -99.99  11.90 
1982 10 99.99 -99.99  -7.60 
1982 11 99.99 -99.99 -17.60 
1982 12 99.99 -99.99 -17.90 
1983 01 99.99 -99.99 -20.80 
1983 02 99.99 -99.99 -15.50 
1983 03 99.99 -99.99 -13.00 
1983 04 99.99 -99.99  -2.20 
1983 05 99.99 -99.99   4.80 
1983 06 99.99 -99.99  10.30 
1983 07 99.99 -99.99  11.00 
1983 11 99.99 -99.99 -14.50 
1983 12 99.99 -99.99 -30.20 
1984 01 99.99 -99.99 -17.90 
1984 02 99.99 -99.99 -11.20 
1984 03 99.99 -99.99  -6.00 
1984 04 99.99 -99.99  -1.20 
