1986 03 -8.10 -14.64 -11.37 
1986 04 -8.76 -16.43 -12.59 
1986 05 18.24 -26.70 -22.47 
1986 06 14.56 -22.13 -18.34 
1986 07 15.39 -24.92 -20.15 
1986 08 17.12 -26.85 -21.99 
1986 09 15.98 -24.63 -20.30 
1986 10 -8.62 -17.48 -13.04 
1986 11 -4.55 -15.33  -9.94 
1986 12 -2.16 -11.07  -6.61 
1987 01  1.04 -10.00  -4.48 
1987 02 -2.28 -11.46  -6.87 
1987 03 -8.05 -15.39 -11.72 
1987 04 12.04 -21.16 -16.60 
1987 05 -9.81 -19.19 -14.50 
1987 06 13.87 -22.50 -18.18 
1987 07 21.57 -30.31 -25.93 
1987 08 11.85 -21.57 -16.70 
1987 09 16.81 -27.45 -22.13 
1987 10 -7.94 -17.81 -12.87 
1987 11 -4.90 -14.13  -9.51 
1987 12  -.87  -9.76  -5.31 
1988 01   .98  -8.84  -3.93 
1988 02 -1.54 -10.58  -6.06 
1988 03 -8.26 -17.04 -12.65 
1988 04 -9.08 -19.15 -14.11 
1988 05 10.10 -20.94 -15.52 
1988 06 14.65 -20.32 -17.48 
1988 07 15.16 -19.29 -17.22 
1988 08 17.79 -19.12 -18.45 
1988 09 14.82 -16.20 -15.51 
1988 10 14.24 -15.10 -14.67 
1988 12 -1.05  -9.50  -5.28 
1989 01  1.58  -7.77  -3.09 
1989 02 -1.16  -9.34  -5.25 
1989 03 -5.20 -12.72  -8.96 
1989 04 13.42 -23.37 -18.39 
1989 05 10.25 -18.45 -14.35 
1989 06 12.32 -22.27 -17.29 
1989 07 -8.93 -18.12 -13.53 
1989 08 -9.45 -19.46 -14.45 
1989 09 -9.99 -20.27 -15.13 
1989 10 -8.45 -18.98 -13.71 
1989 11 -1.75 -12.27  -7.01 
1989 12   .90  -8.35  -3.72 
1990 01  2.77  -6.72  -1.97 
1990 02   .50  -8.79  -4.14 
1990 03 -7.25 -16.42 -11.83 
1990 04 12.72 -22.11 -17.41 
1990 05 11.55 -20.42 -15.98 
1990 06 14.84 -24.56 -19.70 
1990 07 11.35 -21.23 -16.29 
1990 08 17.07 -27.54 -22.30 
1990 09 12.21 -22.23 -17.21 
1990 10 -9.06 -23.11 -16.08 
1992 02 -2.15 -11.97  -7.06 
1992 03 -9.22 -16.90 -13.06 
1992 04 -6.72 -15.10 -10.91 
1992 05 11.29 -18.77 -15.03 
1992 06 13.42 -21.94 -17.68 
1992 07 12.64 -21.26 -16.95 
1992 08 10.59 -19.20 -14.90 
1992 09 -8.77 -17.48 -13.12 
1992 10 -4.85 -15.33 -10.09 
1992 11 -2.24 -11.98  -7.10 
1993 01  4.94  -6.34   -.69 
1993 02   .50  -6.95  -3.22 
1993 03 -6.62 -14.62 -10.62 
1993 04 -7.41 -15.02 -11.21 
1993 05 11.92 -20.36 -16.14 
1993 06 11.68 -19.15 -15.41 
1993 07 -8.26 -17.54 -12.90 
1993 08 -9.67 -18.65 -14.16 
1993 09 10.47 -19.33 -14.90 
1993 10 -6.62 -15.81 -11.21 
1993 11   .33  -9.33  -4.50 
1993 12   .88  -9.62  -4.37 
1994 01   .68  -8.56  -3.94 
1994 12  1.19  -7.84  -3.32 
1995 01  2.55  -6.20  -1.82 
1995 02   .25  -7.61  -3.68 
1995 03 -5.35 -13.97  -9.66 
1995 04 -7.36 -16.68 -12.02 
1995 05 -8.68 -18.29 -13.48 
1995 06 14.02 -22.73 -18.37 
1995 07 13.33 -23.21 -18.27 
1995 08 15.29 -23.43 -19.36 
1995 09 11.47 -21.54 -16.50 
1995 10 -3.15 -14.30  -8.72 
1995 11 -2.46 -13.39  -7.92 
1995 12  4.35  -7.26  -1.45 
1996 01  2.72  -6.43  -1.85 
1996 12  2.78  -5.61  -1.41 
1997 03 -5.69 -12.08  -8.88 
1997 04 -6.88 -14.00 -10.44 
1997 05 -7.18 -15.85 -11.51 
1997 09 12.24 -21.91 -17.07 
1997 10 -6.55 -16.53 -11.54 
1997 11   .70 -12.69  -5.99 
1997 12  5.58  -6.69   -.55 
1998 01  4.84  -4.94    .-5 
1998 02   .94  -6.28  -2.67 
1998 03 -3.36 -11.97  -7.66 
1998 04 -5.63 -13.64  -9.63 
1998 05 -9.66 -17.65 -13.65 
1998 09 10.31 -17.87 -14.09 
1998 10 -7.44 -17.58 -12.51 
1998 11 -1.56 -12.42  -6.99 
1998 12  2.77  -6.06  -1.64 
1999 01  4.87   -.82   2.02 
1999 02  -.57  -3.48  -2.02 
1999 12   . 8  -3.53  -1.72 
2000 01   .13  -7.04  -3.45 
2000 02  -.34  -8.04  -4.19 
2000 03 -1.68 -10.47  -6.07 
2000 04 -8.18 -15.24 -11.71 
2000 05 -7.10 -15.26 -11.18 
2000 06 -7.77 -16.02 -11.89 
2000 07 -7.37 -15.20 -11.28 
2000 08 14.08 -22.92 -18.50 
2000 09 11.80 -21.50 -16.65 
2000 11   .97  -9.99  -4.50 
2000 12  2.14  -9.22  -3.54 
2001 01  6.79  -7.80   -.50 
2001 02  3.63  -9.08  -2.72 
2001 04 -8.22 -17.78 -13.00 
2001 05 -2.85 -14.00  -8.42 
2001 06 11.99 -21.64 -16.81 
2001 07 12.98 -22.97 -17.97 
2001 08 12.10 -24.95 -18.52 
2001 09 -6.57 -19.90 -13.23 
2001 10 -5.01 -17.71 -11.36 
2001 11 -1.37 -10.88  -6.12 
2001 12  2.43 -10.60  -4.08 
2002 01  6.35 -10.04  -1.84 
2002 02   .65 -13.82  -6.58 
2002 03 -3.75 -14.92  -9.33 
2002 04 -4.05 -12.78  -8.41 
2002 05 11.80 -22.63 -17.21 
2002 06 18.37 -27.92 -23.14 
2002 07 10.35 -21.89 -16.11 
2002 08 11.16 -21.96 -16.56 
2002 09 -1.91 -14.44  -8.17 
2002 10 -8.26 -22.01 -15.13 
2002 12  6.82  -7.45   -.31 
2003 01  9.64  -8.64    .49 
2003 03 -2.29 -12.15  -7.22 
2003 04 -5.86 -14.94 -10.40 
2003 05 -9.41 -21.35 -15.38 
2003 06 11.26 -23.21 -17.23 
2003 07 -9.12 -20.17 -14.64 
2003 08 -9.72 -22.25 -15.99 
2003 09 -8.16 -21.77 -14.96 
2003 10 -6.16 -17.44 -11.80 
2003 11   .50 -14.83  -7.16 
2003 12  2.48 -11.54  -4.52 
2004 01  5.51 -10.88  -2.68 
2004 03 -2.04 -13.40  -7.72 
2004 04 -6.20 -14.80 -10.50 
2004 05 -8.85 -18.76 -13.80 
2004 06 -9.97 -18.32 -14.15 
