1987 07 99.99 -99.99  10.90 
1987 09 99.99 -99.99   5.50 
1987 10 99.99 -99.99   1.10 
1987 11 99.99 -99.99  -3.60 
1988 01 99.99 -99.99 -12.20 
1988 02 99.99 -99.99  -8.10 
1988 03 99.99 -99.99  -4.00 
1988 04 99.99 -99.99   -.80 
1988 05 99.99 -99.99   2.90 
1988 06 99.99 -99.99   5.60 
1988 07 99.99 -99.99   8.80 
1988 08 99.99 -99.99   8.00 
1988 09 99.99 -99.99   4.90 
1988 10 99.99 -99.99   1.70 
1988 11 99.99 -99.99  -6.20 
1989 01 99.99 -99.99 -14.70 
1989 02 99.99 -99.99 -11.90 
1989 03 99.99 -99.99  -9.10 
1989 04 99.99 -99.99  -1.00 
1989 05 99.99 -99.99   3.30 
1989 06 99.99 -99.99   8.30 
1989 07 99.99 -99.99  11.90 
1989 08 99.99 -99.99  10.70 
1989 09 99.99 -99.99   7.70 
1989 10 99.99 -99.99    .20 
1989 11 99.99 -99.99 -10.10 
1989 12 99.99 -99.99  -4.10 
1990 01 99.99 -99.99 -14.10 
1990 02 99.99 -99.99 -15.10 
1990 03 99.99 -99.99  -4.00 
1990 04 99.99 -99.99    .60 
1990 05 99.99 -99.99   3.20 
1990 06 99.99 -99.99   8.70 
1990 07 99.99 -99.99  10.90 
1990 08 99.99 -99.99  10.80 
1990 09 99.99 -99.99   6.70 
1990 10 99.99 -99.99  -1.50 
