1978 01 -8.70 -19.29 -14.00 
1978 02 -2.90 -14.70  -8.80 
1978 03   .50 -11.10  -5.30 
1978 04  5.60  -7.90  -1.15 
1978 11 -5.80 -15.00 -10.40 
1978 12 11.20 -20.20 -15.70 
1979 01 12.00 -22.40 -17.20 
1979 02 -7.10 -17.70 -12.40 
1979 03   .10 -12.80  -6.35 
1979 04  3.60 -10.10  -3.25 
1979 05  7.10  -4.40   1.34 
1979 11 -2.70 -11.20  -6.95 
1979 12 -4.30 -12.20  -8.25 
1980 01 11.90 -21.50 -16.70 
1980 02 -2.70 -12.50  -7.60 
1980 03 -2.70 -13.80  -8.25 
1980 04  7.40  -5.20   1.10 
1980 05 10.20   -.70   4.75 
1980 09  9.10  -2.90   3.10 
1980 10  6.60  -2.90   1.84 
1980 11 -2.70  -9.50  -6.10 
1980 12 -6.90 -15.40 -11.15 
1981 01 -2.09  -9.20  -5.64 
1981 02 -3.30 -12.70  -8.00 
1981 03  1.80 -12.50  -5.35 
1981 04  2.90  -8.30  -2.70 
1981 06 10.30    .40   5.35 
1981 07 14.00   3.20   8.60 
1981 08 18.60   4.80  11.70 
1981 09 10.80   1.10   5.95 
1981 10  3.00  -5.10  -1.04 
1981 11  -.80  -8.30  -4.55 
1981 12 -7.80 -16.79 -12.29 
1982 01 10.50 -19.20 -14.85 
1982 02 -6.70 -15.60 -11.15 
1982 03 -1.20 -14.60  -7.90 
1982 04  2.50 -11.30  -4.40 
1982 05  8.50  -3.40   2.55 
1982 10  4.50  -5.00   -.25 
1982 11 -5.30 -13.60  -9.45 
1982 12 -6.70 -13.80 -10.25 
1983 01 -3.90 -11.40  -7.64 
1983 02 -1.70 -10.10  -5.90 
1983 03   .70 -11.10  -5.20 
1983 04  6.40  -8.20   -.89 
1983 11 -3.50 -10.10  -6.80 
1983 12 13.40 -21.90 -17.65 
1984 01 -5.10 -12.80  -8.95 
1984 02 -1.80 -10.60  -6.20 
1984 03  1.80 -10.80  -4.50 
1984 04  5.00  -7.70  -1.34 
1984 10   .40  -7.20  -3.40 
1984 11 -4.19 -12.60  -8.39 
1984 12 12.40 -20.80 -16.59 
1985 01 -4.30 -13.30  -8.80 
1985 02 -7.60 -16.70 -12.15 
1985 03 -1.60 -12.90  -7.25 
1985 04  3.80  -7.20  -1.70 
1985 10   .70  -6.50  -2.90 
1985 11 13.50 -22.20 -17.85 
1985 12 -4.00 -12.60  -8.30 
1986 01 -2.70 -10.30  -6.50 
1986 02 -7.50 -17.79 -12.65 
1986 03  2.50  -9.39  -3.44 
1986 04  3.70  -7.90  -2.09 
1986 11 -4.60 -15.00  -9.80 
1986 12 -3.80 -12.70  -8.25 
1987 01 -5.50 -12.70  -9.10 
1987 02 -1.90 -11.80  -6.85 
1987 03  1.10 -11.70  -5.30 
1987 04  6.30  -6.80   -.25 
1987 10  6.80  -5.60    .60 
1987 11   .30  -8.60  -4.15 
1987 12 -6.30 -14.80 -10.55 
1988 01 -8.60 -17.79 -13.20 
1988 02 -3.20 -15.50  -9.35 
1988 03   .10 -11.40  -5.64 
1988 04  6.60  -6.80   -.10 
1988 11 -4.00 -12.70  -8.35 
1988 12 -6.20 -14.60 -10.40 
1989 01 -8.00 -17.79 -12.90 
1989 02 10.50 -23.00 -16.75 
1989 03 -3.20 -16.00  -9.60 
1989 04  4.30  -8.50  -2.09 
1989 11 -3.00 -11.70  -7.35 
1989 12 -4.19 -13.10  -8.64 
1990 01 -6.70 -15.50 -11.10 
1990 02 -6.90 -18.79 -12.85 
1990 03 -3.50 -16.10  -9.80 
1990 04  4.00  -8.00  -2.00 
1990 05  7.40  -2.50   2.45 
1990 11 -4.50 -12.00  -8.25 
1990 12 11.20 -20.00 -15.60 
1991 01 -9.00 -18.00 -13.50 
1991 02  -.90  -8.70  -4.79 
1991 03 -2.60 -15.90  -9.25 
1991 04  4.00  -6.80  -1.40 
1991 11 -3.90 -11.60  -7.75 
1991 12 -3.60 -10.80  -7.20 
1992 01 -3.00 -10.00  -6.50 
1992 02  -.40 -10.10  -5.25 
1992 03  4.19  -8.70  -2.25 
1992 04  4.00  -6.10  -1.04 
1992 11 -2.70 -10.40  -6.55 
1992 12 11.10 -19.00 -15.05 
1993 01 -9.30 -18.40 -13.85 
1993 02 -6.00 -15.50 -10.75 
1993 03 -1.80 -12.30  -7.05 
1993 04  3.40  -6.60  -1.59 
1993 11 -4.80 -13.30  -9.05 
1993 12 -3.90 -12.90  -8.39 
1994 01 -3.70 -11.70  -7.70 
1994 02 -9.50 -19.60 -14.55 
1994 03   .50 -11.90  -5.70 
1994 04  4.40  -6.20   -.89 
1994 11 -6.30 -13.40  -9.85 
1994 12 -8.20 -14.80 -11.50 
1995 01 -6.00 -14.40 -10.20 
1995 02 -5.60 -15.10 -10.35 
1995 03  -.80 -14.20  -7.50 
1995 04  2.70  -8.80  -3.05 
1996 04 -1.20  -6.30  -3.75 
1996 05  6.40  -4.30   1.04 
1996 08 12.10   5.70   8.89 
1996 09  8.89  -1.90   3.49 
1996 10  1.80  -7.90  -3.05 
1996 11 -8.10 -15.10 -11.60 
1996 12 11.80 -19.50 -15.65 
1997 01 -6.80 -14.60 -10.70 
1997 02 -2.80 -11.70  -7.25 
1997 03 -3.10 -13.60  -8.35 
1997 04  2.70 -10.80  -4.05 
1997 05  9.50  -1.80   3.85 
1997 06 11.50    .90   6.20 
1997 07 14.40   2.40   8.39 
1997 08 15.90   2.50   9.20 
1997 09 11.60    .20   5.90 
1997 10  2.09  -5.30  -1.60 
1997 11 -1.90  -8.70  -5.30 
1997 12 -4.90 -12.00  -8.45 
1998 02 -1.70 -10.90  -6.30 
1998 03  -.60 -11.40  -6.00 
1998 04  5.80  -6.90   -.54 
1998 05 13.50    .10   6.80 
1998 06 12.50   1.40   6.95 
1998 07 18.60   5.50  12.05 
1998 08 17.79   4.40  11.10 
1998 09 13.80   1.50   7.65 
1998 10  5.40  -2.90   1.25 
1998 11 -3.40  -9.20  -6.30 
1999 11 -1.50  -8.39  -4.94 
1999 12 -3.70 -10.30  -7.00 
2000 01 -7.80 -16.29 -12.04 
2000 02 -4.00 -14.60  -9.30 
2000 03 -1.00 -10.50  -5.75 
2000 04  3.80  -8.30  -2.25 
2000 05  7.30  -3.20   2.05 
2000 06 11.70   -.20   5.75 
2000 07 15.50   3.00   9.25 
2000 08 15.00   1.50   8.25 
2000 09  9.39  -1.30   4.04 
2000 10  5.20  -4.10    .54 
2000 11 -4.19 -12.80  -8.50 
2000 12 -8.00 -16.90 -12.45 
2001 01 -4.00 -12.20  -8.10 
2001 02 -7.20 -19.00 -13.10 
2001 04  2.80  -7.90  -2.55 
2001 05  8.39  -2.70   2.85 
2001 06 12.10    .50   6.30 
2001 07 15.50   3.70   9.60 
2001 08 16.50   3.90  10.20 
2001 09 11.70    .60   6.15 
2001 10  4.10  -4.69   -.29 
2001 11 -1.80  -9.10  -5.45 
2001 12 -8.60 -15.60 -12.10 
2002 01 10.60 -18.70 -14.65 
2002 02 -4.90 -13.90  -9.39 
2002 03 -7.50 -20.50 -14.00 
2002 04  1.10 -10.70  -4.79 
2002 11  1.40 -11.80  -5.20 
2002 12   . 0 -99.99 -99.99 
2003 12 -6.00 -13.60  -9.80 
2004 01 -8.33 -17.93 -13.13 
2004 02 -2.59 -13.31  -7.95 
2004 03   .-2 -10.44  -5.23 
2004 04  6.52 -99.99 -99.99 
2007 06 13.16    .36   6.76 
2007 07 19.64   4.76  12.20 
2007 09  8.68  -1.16   3.76 
2007 10  2.75  -4.94  -1.09 
2007 11 -4.53 -12.02  -8.27 
