1976 09 23.54   9.30  16.42 
1977 07 32.40  20.27  26.33 
1987 09 23.66  11.51  17.58 
1988 01 -3.41 -13.32  -8.36 
1988 02 -1.74 -12.32  -7.03 
1988 03  8.91  -3.26   2.82 
1988 04 16.04   2.55   9.29 
1988 05 26.91  12.19  19.54 
1988 06 31.46  18.61  25.03 
1988 07 33.48  20.59  27.03 
1988 08 32.78  19.23  26.00 
1988 09 25.13  12.22  18.67 
1988 10 13.34   1.49   7.41 
1988 11  6.88  -2.61   2.13 
1988 12   .78  -7.98  -3.60 
1989 01  2.65  -5.73  -1.54 
1989 02 -4.53 -16.78 -10.65 
1989 03  7.11 -99.99 -99.99 
1989 04 15.50 -99.99 -99.99 
1989 05 21.77 -99.99 -99.99 
1989 06 27.04 -99.99 -99.99 
1989 07 31.10 -99.99 -99.99 
1989 08 29.00 -99.99 -99.99 
1989 09 22.63 -99.99 -99.99 
1989 10 17.66 -99.99 -99.99 
1989 11  6.91 -99.99 -99.99 
1989 12 -4.60 -99.99 -99.99 
1990 01  1.82 -99.99 -99.99 
1990 02  2.86 -99.99 -99.99 
1990 03  8.93 -99.99 -99.99 
1990 04 15.19 -99.99 -99.99 
1990 05 19.59 -99.99 -99.99 
1990 06 27.08 -99.99 -99.99 
1990 07 28.52 -99.99 -99.99 
1990 08 28.75 -99.99 -99.99 
1990 09 24.78 -99.99 -99.99 
1990 10 16.69 -99.99 -99.99 
1990 11 10.31 -99.99 -99.99 
1991 02  3.91 -99.99 -99.99 
1991 03  9.57 -99.99 -99.99 
1991 04 15.78 -99.99 -99.99 
1991 05 24.85 -99.99 -99.99 
1991 06 30.59 -99.99 -99.99 
1991 07 30.59 -99.99 -99.99 
1991 08 28.64 -99.99 -99.99 
1991 09 22.98 -99.99 -99.99 
1991 10 15.56 -99.99 -99.99 
1991 11  3.18 -99.99 -99.99 
1991 12  1.73 -99.99 -99.99 
1992 01  1.82 -99.99 -99.99 
1992 02  4.31 -99.99 -99.99 
1992 03  9.34 -99.99 -99.99 
1992 04 13.79 -99.99 -99.99 
1992 05 22.94 -99.99 -99.99 
1992 06 27.88 -99.99 -99.99 
1992 07 25.90 -99.99 -99.99 
1992 08 26.13 -99.99 -99.99 
1992 09 22.09 -99.99 -99.99 
1992 10 15.91 -99.99 -99.99 
1992 11  3.09 -99.99 -99.99 
1993 01 -2.63 -99.99 -99.99 
1993 02 -1.88 -99.99 -99.99 
1993 03  4.71 -99.99 -99.99 
1993 04 15.47 -99.99 -99.99 
1993 05 22.89 -99.99 -99.99 
1993 06 27.61 -99.99 -99.99 
1993 07 29.66 -99.99 -99.99 
1993 08 29.65 -99.99 -99.99 
1993 09 21.33 -99.99 -99.99 
1993 10 17.24 -99.99 -99.99 
1993 12  1.53 -99.99 -99.99 
1994 02 -2.84 -99.99 -99.99 
1994 03  8.58 -99.99 -99.99 
1994 04 15.41 -99.99 -99.99 
1994 05 23.33 -99.99 -99.99 
1994 06 29.47 -99.99 -99.99 
1994 07 29.19 -99.99 -99.99 
1994 08 27.98 -99.99 -99.99 
1994 09 25.38 -99.99 -99.99 
1994 10 17.76 -99.99 -99.99 
1994 11  9.10 -99.99 -99.99 
