1972 02 -3.81 -15.31  -9.56 
1972 03  5.97  -6.43   -.23 
1972 04 12.96    .42   6.69 
1972 05 20.44   8.89  14.66 
1972 06 26.57  12.17  19.36 
1972 07 29.00  14.54  21.77 
1972 08 29.79  15.43  22.61 
1972 09 24.52   8.80  16.66 
1972 10 14.88   1.00   7.94 
1972 11  3.51  -4.63   -.56 
1972 12 -3.66 -13.88  -8.77 
1973 01 -1.56 -13.69  -7.62 
1973 02  2.94 -10.80  -3.93 
1973 03  9.93  -1.37   4.28 
1973 04 14.84    .60   7.72 
1973 05 21.72   5.78  13.75 
1973 06 28.60  13.00  20.80 
1973 07 31.19  15.90  23.54 
1974 05 19.81   6.30  13.05 
1974 06 27.26  12.31  19.78 
1974 07 34.56  17.93  26.24 
1974 08 28.53  13.46  20.99 
1975 05 21.53   8.12  14.82 
1975 06 25.59  13.60  19.59 
1975 07 33.84  18.32  26.08 
1975 08 30.69  16.28  23.48 
1977 03  8.27  -3.89   2.19 
1977 04 18.14   4.31  11.22 
1977 05 25.02  11.15  18.08 
1977 06 28.43  14.41  21.42 
1977 07 31.45  16.68  24.06 
1977 08 27.79  12.72  20.25 
1978 05 21.41   8.85  15.13 
1978 06 27.26  12.23  19.74 
1978 07 30.15  16.11  23.13 
1978 08 31.30  14.47  22.88 
1978 09 29.51  11.27  20.39 
1978 10 19.83    .-2   9.90 
1978 11  5.81  -6.78   -.48 
1978 12 -2.00 -13.78  -7.89 
1979 01 -9.33 -23.78 -16.55 
1979 03 99.99  -5.54 -99.99 
1979 04 13.14    . 6   6.60 
1979 05 19.04   5.42  12.23 
1979 06 26.21  13.07  19.64 
1979 07 28.85  16.70  22.78 
1979 08 28.05  14.99  21.52 
1980 06 28.79  12.14  20.46 
1980 07 32.89  17.07  24.98 
1980 08 30.09  15.13  22.61 
1980 11 10.03  -2.56   3.73 
1981 01  2.80 -10.89  -4.04 
1981 02  3.61 -10.26  -3.32 
1981 03 12.43  -4.94   3.74 
1981 04 19.24   5.00  12.12 
1981 05 20.36   7.26  13.81 
1981 06 26.96  12.76  19.86 
1981 07 29.33  16.79  23.06 
1981 08 28.73  15.65  22.18 
1981 09 25.53   9.74  17.63 
1981 12  -.64  -8.96  -4.80 
1982 01 -8.77 -21.05 -14.91 
1982 02  -.57 -12.84  -6.70 
1982 03  4.89  -4.27    .30 
1982 04 14.41    .76   7.58 
1982 05 20.40   9.39  14.89 
1982 06 23.43  11.36  17.39 
1982 07 30.11  16.84  23.47 
1982 08 29.80  15.95  22.87 
1982 09 22.68   9.35  16.01 
1982 10 14.37   3.54   8.95 
1982 11  4.46  -6.31   -.92 
1982 12  3.01  -9.34  -3.16 
1983 01  2.08  -9.49  -3.69 
1983 02  6.10  -6.82   -.36 
1983 03  5.56  -3.49   1.03 
1983 04 11.24   -.60   5.32 
1983 05 19.29   4.42  11.86 
1983 06 24.17  12.51  18.34 
1983 07 31.33  18.24  24.78 
1983 08 33.81  18.41  26.11 
1983 09 25.44   9.18  17.31 
1983 10 16.67   3.42  10.04 
1983 11  6.15  -2.89   1.63 
1984 02  5.57 -99.99 -99.99 
1984 03  4.09  -7.03  -1.47 
1984 04 12.65   1.72   7.18 
1984 05 19.89   5.75  12.82 
1984 06 25.74  14.05  19.89 
1984 08 31.56  16.21  23.89 
1984 09 23.20 -99.99 -99.99 
1984 10 16.82 -99.99 -99.99 
1984 11  9.47  -5.91   1.78 
1984 12   .55 -99.99 -99.99 
1985 01 -3.97 -19.34 -11.65 
1985 02 -1.60 -15.24  -8.42 
1985 03  8.53  -5.42   1.55 
1985 04 18.68   1.79  10.23 
1985 05 25.57   9.14  17.36 
1985 06 23.79  10.70  17.24 
1985 07 31.79  15.41  23.60 
1985 08 26.69  12.69  19.69 
1985 09 21.46  10.52  15.99 
1985 10 16.45   1.25   8.85 
1985 11   .88 -99.99 -99.99 
1985 12 -2.76 -99.99 -99.99 
1986 01   .37 -12.49  -6.06 
1986 02 -3.76 -13.04  -8.39 
1986 03 10.66  -2.26   4.19 
1986 04 14.50   1.04   7.77 
1986 05 20.29   7.66  13.97 
1986 06 27.59  15.18  21.38 
1986 07 31.43  16.99  24.21 
1986 08 28.53  12.86  20.69 
1986 09 21.87 -99.99 -99.99 
1987 02  7.27  -7.16    . 5 
1987 05 24.76  10.32  17.54 
1987 06 30.86  14.53  22.69 
1987 07 32.07  17.07  24.57 
1987 08 28.23  14.06  21.14 
1987 09 25.02   9.06  17.04 
1987 12  3.38  -8.13  -2.37 
1988 04 16.95  -1.24   7.85 
1988 05 22.98  10.07  16.52 
1988 06 32.23  17.61  24.92 
1988 07 32.25  17.58  24.91 
1988 08 32.48  16.01  24.24 
1988 09 25.02   9.04  17.03 
1988 10 15.34   1.46   8.39 
1988 11  9.25 -99.99 -99.99 
1989 04 17.03    .99   9.01 
1989 05 22.77   7.19  14.98 
1989 06 26.90  11.67  19.28 
1989 07 32.41  18.56  25.48 
1989 08 31.40  16.20  23.80 
1989 09 23.71 -99.99 -99.99 
1990 04 16.28   -.93   7.67 
1990 05 19.54   7.41  13.47 
1990 06 27.85  13.75  20.80 
1990 07 30.26  16.35  23.30 
1990 08 30.10 -99.99 -99.99 
1991 03 10.14  -4.58   2.78 
1991 05 21.82  10.01  15.91 
1991 06 28.03  17.02  22.52 
1991 07 31.07  16.99  24.03 
1991 08 31.39  16.71  24.05 
1992 04 14.38   -.58   6.90 
1992 05 24.30   7.13  15.71 
1992 06 24.76  12.29  18.52 
1992 07 24.74  13.43  19.08 
1992 08 26.65  13.37  20.01 
1993 06 23.38  11.87  17.62 
1993 07 26.29  15.26  20.77 
1993 08 28.46  14.76  21.61 
1994 05 25.03   9.53  17.28 
1994 06 27.67  14.31  20.99 
1994 07 29.25  14.07  21.66 
1994 08 29.09  13.75  21.42 
1995 06 25.55 -99.99 -99.99 
1995 07 30.73 -99.99 -99.99 
1995 08 31.23  17.54  24.39 
1996 05 18.20   8.12  13.16 
1996 06 27.24  13.88  20.56 
1996 07 29.51  14.33  21.92 
1996 08 30.80  15.44  23.12 
1996 09 23.62 -99.99 -99.99 
1997 06 27.08  13.95  20.51 
1997 07 29.48  16.70  23.09 
1997 08 28.76  15.74  22.25 
1998 05 23.31   9.12  16.21 
1998 06 23.85  11.05  17.45 
1998 07 31.07  17.93  24.50 
1998 08 30.78  15.98  23.38 
1998 09 28.88 -99.99 -99.99 
1999 06 25.95  13.19  19.57 
1999 07 31.44  17.98  24.71 
1999 08 31.56  14.84  23.20 
2000 06 26.62  12.13  19.37 
2000 07 31.41  17.24  24.32 
2001 05 22.93   8.74  15.83 
2001 06 26.65  12.77  19.70 
2001 07 31.86  18.24  25.05 
2001 08 32.64  16.19  24.41 
2001 10 19.14 -99.99 -99.99 
2002 05 20.10   4.91  12.50 
2002 06 31.01  14.52  22.76 
2002 07 34.31  19.52  26.91 
2002 08 30.26  16.40  23.33 
2002 09 25.78  11.25  18.51 
2003 07 32.54  15.91  24.22 
2003 08 32.43  17.36  24.90 
2003 09 26.01 -99.99 -99.99 
2003 11  4.03  -4.25   -.10 
2003 12  3.06 -99.99 -99.99 
2004 01 -2.92 -99.99 -99.99 
2004 02  2.00 -99.99 -99.99 
2004 03 11.90  -2.40   4.75 
2004 04 18.24 -99.99 -99.99 
2004 05 21.69 -99.99 -99.99 
2004 06 21.97 -99.99 -99.99 
2004 07 28.22 -99.99 -99.99 
2004 08 26.80 -99.99 -99.99 
2004 09 24.78  11.69  18.23 
2004 10 15.94 -99.99 -99.99 
2004 11  9.49  -3.30   3.09 
2004 12  2.03 -99.99 -99.99 
2005 01 99.99 -11.81 -99.99 
2005 02  5.48 -99.99 -99.99 
2005 03  9.66  -6.07   1.79 
2005 04 16.17   3.02   9.59 
2005 05 20.20   6.65  13.42 
2005 06 25.99  16.16  21.07 
2005 07 32.13  17.57  24.85 
2005 08 31.91 -99.99 -99.99 
2005 09 27.85  12.61  20.23 
2005 10 18.18   2.29  10.23 
2005 11  9.89  -3.89   3.00 
2005 12 -3.02 -11.90  -7.46 
2006 01  6.70  -3.78   1.45 
2006 02  2.90  -9.88  -3.49 
2006 03  6.81  -5.12    .84 
2006 04 15.85   3.18   9.51 
2006 05 23.87 -99.99 -99.99 
2006 06 29.45  14.43  21.94 
2006 07 35.55  19.67  27.61 
2006 08 31.11 -99.99 -99.99 
2006 09 21.69   9.35  15.52 
2006 10 14.86    .58   7.72 
2006 11  9.52 -99.99 -99.99 
2006 12  4.08  -9.31  -2.61 
2007 01  -.38 -12.84  -6.61 
2007 02 -4.00 -14.63  -9.31 
2007 03 11.91  -3.01   4.44 
2007 04 13.34    .63   6.98 
2007 05 24.08   9.59  16.83 
2007 06 27.44  15.14  21.29 
2007 07 33.43  18.51  25.97 
2007 08 28.93  16.57  22.75 
2007 09 26.14  10.48  18.31 
2007 10 18.20   4.40  11.30 
2007 12  -.47 -12.01  -6.24 
2008 01 -1.00 -14.60  -7.80 
2008 02   . 9 -14.15  -7.03 
2008 03  7.65  -6.52    .56 
2008 04 14.29 -99.99 -99.99 
2008 05 19.20   6.76  12.98 
2008 06 25.98  12.50  19.24 
2008 07 30.40  17.34  23.87 
2008 08 30.32  16.54  23.43 
2008 09 25.10 -99.99 -99.99 
2008 10 17.10   3.16  10.13 
2008 11  7.40  -2.99   2.20 
2008 12 -3.94 -16.07 -10.00 
2009 01 -1.56 -15.85  -8.70 
2009 02  2.26 -10.94  -4.33 
2009 03  7.15  -7.46   -.15 
2009 04 14.15    .96   7.55 
2009 05 23.68   7.47  15.57 
2009 06 26.03  13.31  19.67 
2009 07 27.90  14.29  21.09 
2009 08 27.94  14.15  21.04 
2009 09 25.59  12.35  18.97 
2009 10 10.77   1.65   6.21 
2009 11 12.28  -2.82   4.73 
2009 12 -4.92 -13.92  -9.42 
2010 01 -5.05 -14.99 -10.02 
2010 02 -5.31 -15.28 -10.29 
2010 03  8.08  -2.88   2.60 
2010 04 17.62   3.68  10.65 
2010 05 19.59   8.10  13.85 
2010 06 26.09  14.73  20.41 
2010 07 30.23  17.89  24.06 
2010 08 31.79  17.67  24.73 
2010 09 23.32   9.22  16.27 
2010 12 -2.32 -12.33  -7.32 
2011 01 -5.38 -18.68 -12.03 
2011 02 -3.28 -16.66  -9.97 
2011 03  2.45  -8.43  -2.99 
2011 04 12.19    .30   6.24 
2011 05 18.68   5.38  12.03 
2011 06 24.63  11.09  17.86 
2011 07 31.58  18.35  24.96 
2011 09 24.50   7.36  15.93 
2011 10 19.14   4.12  11.62 
2011 11  9.57  -5.94   1.81 
2011 12  4.28  -9.38  -2.55 
2012 03 16.00   -.81   7.59 
2012 04 17.89   3.18  10.53 
2012 05 24.46   7.58  16.02 
2012 06 29.10  13.92  21.51 
2012 07 35.02  18.95  26.98 
2012 08 31.83  13.32  22.57 
2012 09 27.92   7.64  17.78 
2012 10 16.11    .93   8.52 
2012 11  9.06  -5.38   1.84 
2012 12  -.12 -11.76  -5.94 
2013 01  -.89 -13.81  -7.35 
2013 02   .16 -11.12  -5.48 
2013 03  3.95  -9.06  -2.55 
2013 04  9.46  -3.94   2.76 
2013 05 21.08   6.49  13.78 
2013 06 25.42  12.53  18.97 
2013 07 29.03  15.92  22.47 
2013 08 29.55  16.65  23.09 
2013 09 27.90  12.51  20.20 
2013 10 14.18   2.43   8.30 
2013 12 -2.33 -17.75 -10.04 
2014 01   .32 -14.62  -7.15 
2014 02 -2.08 -17.45  -9.77 
2014 03  6.22 -10.01  -1.89 
2014 04 15.63  -1.68   6.97 
