1987 02 99.99 -99.99   9.80 
1987 03 99.99 -99.99   5.90 
1987 05 99.99 -99.99  -1.40 
1987 06 99.99 -99.99   -.70 
1987 07 99.99 -99.99  -1.80 
1987 08 99.99 -99.99  -3.60 
1987 10 99.99 -99.99    .60 
1987 11 99.99 -99.99   4.90 
1987 12 99.99 -99.99   4.60 
1988 02 99.99 -99.99  12.70 
1988 03 99.99 -99.99   6.20 
1988 07 99.99 -99.99  -2.20 
1988 08 99.99 -99.99   3.60 
1988 09 99.99 -99.99    .30 
1988 10 99.99 -99.99    .90 
1988 11 99.99 -99.99   5.60 
1988 12 99.99 -99.99   5.30 
1989 01 99.99 -99.99   8.50 
1989 02 99.99 -99.99  12.00 
1989 03 99.99 -99.99   5.80 
1989 04 99.99 -99.99   1.90 
1989 05 99.99 -99.99   1.60 
1989 07 99.99 -99.99  -2.50 
1989 08 99.99 -99.99  -3.30 
1989 09 99.99 -99.99  -1.70 
1989 10 99.99 -99.99   3.50 
1989 11 99.99 -99.99   6.00 
1991 09 99.99 -99.99   6.00 
