1978 12 10.50 -19.16 -14.83 
1979 01 10.68 -18.78 -14.73 
1979 02 -8.59 -16.57 -12.58 
1979 03 -6.03 -12.16  -9.09 
1979 04 -1.70  -8.79  -5.24 
1979 05   .60  -7.23  -3.31 
1979 06  8.75   1.66   5.20 
1979 07  8.55   2.48   5.51 
1979 08  7.53   2.31   4.92 
1979 09  3.10  -1.68    .71 
1979 10  1.42  -4.98  -1.78 
1979 11 -4.94 -10.16  -7.55 
1979 12 -7.96 -14.49 -11.22 
1980 01 -9.85 -16.41 -13.13 
1980 02 -6.33 -14.06 -10.19 
1980 03 -6.93 -14.29 -10.61 
1980 04  -.41  -7.89  -4.15 
1980 05  5.83  -2.95   1.44 
1980 06  9.97   3.63   6.80 
1980 07 12.15   5.79   8.96 
1980 08  8.76   4.04   6.40 
1980 09  5.99   1.50   3.74 
1980 10 -2.73  -8.08  -5.40 
1980 11 -6.25 -12.76  -9.50 
1980 12 -5.94 -11.78  -8.85 
1981 01 -8.01 -15.47 -11.74 
1981 02 -7.95 -15.75 -11.85 
1981 03 -5.44 -14.55  -9.99 
1981 04  -.84 -10.75  -5.79 
1981 05  4.92  -1.37   1.78 
1981 06  5.63    .19   2.91 
1981 07  8.60   3.53   6.06 
1981 08  8.05   2.59   5.32 
1981 09  6.65    .99   3.82 
1981 10 -1.15  -6.19  -3.67 
1981 11 -5.22 -11.11  -8.16 
1981 12 12.31 -20.48 -16.39 
1982 01 -8.97 -15.54 -12.25 
1982 02 -3.28  -9.81  -6.54 
1982 03 -4.86  -9.41  -7.13 
1982 04 -1.80  -7.68  -4.73 
1982 05  2.92  -3.72   -.39 
1982 06  7.49   -.38   3.55 
1982 07 10.95   4.42   7.68 
1982 08  9.25   3.99   6.62 
1982 09  3.73   -.60   1.56 
1982 10   .38  -3.48  -1.55 
1982 11 -3.09  -8.18  -5.64 
1982 12 -5.53 -11.17  -8.35 
1983 01 -4.96 -10.84  -7.90 
1983 02 -8.14 -14.58 -11.36 
1983 03 -4.77 -11.54  -8.15 
1983 04 -1.26  -8.97  -5.12 
1983 05  3.26  -1.98    .64 
1983 06  5.69    .13   2.91 
1983 07  9.05   2.75   5.90 
1983 08  8.43   2.71   5.57 
1983 09  3.67    .12   1.89 
1983 10  -.52  -4.76  -2.64 
1983 11 -4.00  -9.63  -6.81 
1983 12 -5.45 -12.22  -8.83 
1984 01 -9.81 -15.97 -12.89 
1984 02 -6.41 -12.68  -9.54 
1984 03 -6.69 -15.82 -11.25 
1984 04   .32  -6.28  -2.98 
1984 05  4.64  -1.91   1.36 
1984 06  6.43    .58   3.51 
1984 07  9.37   3.03   6.20 
1984 08  9.49   4.15   6.82 
1984 09  3.99   -.58   1.70 
1984 10   .55  -3.70  -1.57 
1984 11 -1.71  -6.62  -4.16 
1984 12 -4.62 -10.03  -7.32 
1985 01 -9.42 -16.48 -12.95 
1985 02 -7.98 -14.29 -11.13 
1985 03 -6.17 -13.65  -9.91 
1985 04 -2.80 -10.49  -6.64 
1985 05  5.63  -2.98   1.32 
1985 06  7.68   1.38   4.52 
1985 07  9.42   3.88   6.65 
1985 08  7.63   3.43   5.53 
1985 09  1.92  -2.20   -.14 
1985 10  2.23  -1.80    .21 
1985 11 -7.72 -13.59 -10.65 
1985 12 -7.93 -14.71 -11.32 
1986 01 11.08 -17.02 -14.05 
1986 02 -9.96 -18.87 -14.42 
1986 03 -4.19  -9.18  -6.69 
1986 04 -3.50 -12.10  -7.80 
1986 05  2.96  -1.39    .78 
1986 06 10.30   3.17   6.73 
1986 07  9.35   3.42   6.38 
1986 08  6.47   2.07   4.27 
1986 09   .32  -3.31  -1.49 
1986 10   .31  -3.83  -1.76 
1986 11 -2.27  -6.86  -4.56 
1986 12 -7.02 -12.99 -10.00 
1987 01 11.10 -19.68 -15.39 
1987 02 -7.19 -13.35 -10.27 
1987 03 -7.69 -15.39 -11.54 
1987 04   .12  -6.34  -3.11 
1987 05  2.41  -4.14   -.86 
1987 06  5.69    . 5   2.87 
1987 07  8.68   2.30   5.49 
1987 08  7.25   1.91   4.58 
1987 09  3.37  -1.59    .88 
1987 10  1.61  -2.44   -.41 
1987 11 -4.04  -9.22  -6.63 
1987 12 -4.09  -9.09  -6.59 
1988 01 -5.75 -10.43  -8.09 
1988 02 -6.32 -12.27  -9.29 
1988 03 -7.46 -14.64 -11.05 
1988 04 -2.46 -11.23  -6.84 
1988 05  5.58   -.92   2.33 
1988 06 12.70   4.17   8.43 
1988 07 10.20   5.41   7.80 
1988 08  8.78   4.14   6.46 
1988 09  5.04   1.56   3.30 
1988 10   . 7  -4.87  -2.39 
1988 11 -4.69 -10.08  -7.39 
1988 12 -4.87 -10.16  -7.51 
1989 01 -1.76  -7.15  -4.45 
1989 02 -4.89  -9.58  -7.23 
1989 03 -3.64  -9.14  -6.39 
1989 04 -1.00  -8.52  -4.76 
1989 05  2.16  -4.07   -.95 
1997 09  4.78    .49   2.63 
1997 10 -1.97  -6.81  -4.39 
1997 11 -3.60  -8.89  -6.25 
1997 12 -3.60  -9.55  -6.57 
1998 01 -5.13 -10.48  -7.80 
1998 02 -3.22  -9.04  -6.13 
1998 03 -5.65 -12.66  -9.15 
1998 04 -1.73  -8.49  -5.10 
1998 05  3.84  -3.47    .18 
1998 06  5.67    .39   3.03 
1998 07  7.75   2.88   5.31 
1998 08  7.18   2.25   4.71 
1998 09  7.05   2.81   4.93 
1998 10  -.83  -5.55  -3.19 
1998 11 -6.39 -11.96  -9.17 
1998 12 -4.48  -9.77  -7.12 
1999 01 -6.56 -11.85  -9.20 
1999 03 -4.56 -10.18  -7.37 
1999 04   .25  -6.65  -3.20 
1999 05  1.96  -5.31  -1.67 
1999 06  6.10    .79   3.44 
1999 07  9.51   3.33   6.42 
1999 08 11.66   3.11   7.38 
1999 09  8.31   3.52   5.91 
1999 10   .71  -4.69  -1.99 
1999 11  -.66  -5.88  -3.27 
1999 12 -8.22 -14.93 -11.57 
2000 01 -4.40 -10.73  -7.56 
2000 02 -6.17 -12.93  -9.55 
2000 03 -5.51 -12.04  -8.77 
2000 04  -.99  -6.12  -3.55 
2000 05  5.80  -1.26   2.27 
2000 07 10.85   3.95   7.40 
2000 08  8.33   3.26   5.79 
2000 09  5.48   1.14   3.31 
2000 10  2.53   -.88    .82 
2001 11 -2.65  -7.76  -5.20 
2002 05  4.92  -1.40   1.76 
2002 06  7.98   2.88   5.43 
2002 07 10.25   5.16   7.70 
2002 08 13.80   6.88  10.34 
2002 09  6.66   2.13   4.39 
2002 10 -2.59  -7.55  -5.07 
2002 11 -6.14 -12.99  -9.56 
2002 12 -8.28 -14.99 -11.63 
2003 01 -5.59 -12.09  -8.84 
2003 02 -3.47 -11.66  -7.56 
2003 03 -1.98  -8.80  -5.39 
2003 04  1.21  -7.28  -3.03 
2003 05  1.72  -3.39   -.83 
2003 06  9.09   2.25   5.67 
2003 07 13.07   6.82   9.94 
2003 09  5.14   1.01   3.07 
2003 10 -2.06  -7.04  -4.55 
2003 11  -.69  -6.48  -3.58 
2004 02 -5.12 -11.34  -8.22 
2004 03 -3.72 -10.80  -7.26 
2004 04   .37  -4.66  -2.14 
2004 05  3.90  -2.58    .66 
2004 06  7.58    .63   4.10 
2004 07  9.28   3.49   6.38 
2004 08 11.42   6.38   8.89 
2004 09  5.46   1.13   3.29 
2004 10   .11  -4.25  -2.07 
2004 11 -3.31  -9.28  -6.29 
2004 12 -3.47  -9.21  -6.34 
2005 01 -4.40  -9.57  -6.98 
2005 02 -6.40 -12.07  -9.23 
2005 03 -3.95 -12.85  -8.40 
2005 04   .40  -7.36  -3.48 
2005 05  2.09  -4.57  -1.23 
2005 06  5.52    . 2   2.77 
2005 07 11.83   5.37   8.60 
2005 08  8.80   3.75   6.27 
2005 09  5.74   1.00   3.37 
2005 10  4.15  -1.52   1.31 
2005 11 -1.83  -6.41  -4.12 
2005 12 -6.03 -12.35  -9.19 
2006 01 -4.67 -10.69  -7.68 
2006 02 -5.31 -11.23  -8.26 
2006 03 -8.07 -17.03 -12.55 
2006 04 -2.62  -8.96  -5.79 
2006 05  3.39  -2.77    .31 
2006 06  8.60   1.58   5.09 
2006 07 13.39   7.05  10.22 
2006 08 12.31   7.38   9.84 
2006 09  8.64   4.35   6.50 
2006 10  2.30  -1.58    .35 
2006 11 -1.99  -5.98  -3.98 
2007 01 -5.15 -12.71  -8.93 
2007 02 -8.02 -14.34 -11.18 
2007 03 -1.50  -8.43  -4.96 
2007 04   .16  -6.83  -3.33 
2007 05  3.01  -3.50   -.24 
2007 06 10.16   2.10   6.13 
2007 07  8.89   4.17   6.53 
2007 08  8.88   4.23   6.55 
2007 09  3.36  -1.33   1.01 
2007 10  2.30  -2.70   -.20 
2007 11 -3.39  -9.50  -6.44 
2007 12 -3.62  -9.89  -6.76 
2008 01 -5.32 -10.67  -7.99 
2008 02 -3.30  -9.22  -6.26 
2008 03 -6.27 -12.86  -9.56 
2008 04   .60  -8.38  -3.89 
2008 05  4.71  -2.59   1.06 
2008 06  7.31   1.00   4.15 
2008 07 12.15   4.86   8.50 
2008 08  9.21   4.56   6.88 
2008 09  5.99    .89   3.43 
2008 10  -.37  -4.71  -2.54 
2008 11 -3.02  -8.76  -5.89 
2008 12 -4.60 -10.98  -7.79 
2009 01 -5.67 -11.90  -8.78 
2009 02 -6.67 -12.62  -9.64 
2009 03 -4.63 -10.38  -7.50 
2009 04  2.33  -3.80   -.73 
2009 05  3.37  -1.84    .76 
2009 06  7.65    .52   4.09 
2009 07 10.87   5.43   8.14 
2009 08  9.05   4.67   6.86 
2009 09  5.57   1.13   3.35 
2009 10  -.69  -6.94  -3.81 
2009 11 -1.96  -7.53  -4.74 
2009 12 -7.36 -13.78 -10.57 
2010 01 -9.97 -16.92 -13.44 
2010 02 10.02 -18.16 -14.09 
2010 03 -3.80 -10.12  -6.96 
2010 04  -.49  -7.77  -4.13 
2010 05  4.52  -4.54    . 0 
2010 06  7.81    .76   4.28 
2010 07 11.69   5.45   8.57 
2010 08 10.43   4.87   7.65 
2010 09  5.76    .19   2.97 
2010 10   .93  -4.60  -1.83 
2010 11 -7.98 -14.89 -11.43 
2010 12 10.13 -18.29 -14.21 
2011 01 -5.50 -11.35  -8.42 
2011 02 -6.80 -13.65 -10.22 
2011 03 -4.84 -11.68  -8.26 
2011 04  3.32  -3.63   -.15 
2011 05  4.04  -2.41    .81 
2011 06  9.25   2.49   5.87 
2011 07 12.67   6.14   9.40 
2011 08  9.83   5.04   7.43 
2011 09  6.26   2.05   4.15 
2011 10  2.01  -3.14   -.56 
2011 11  2.18  -3.62   -.71 
2011 12 -4.85 -11.15  -8.00 
2012 01 -7.11 -12.40  -9.75 
2012 02 -5.83 -11.39  -8.61 
2012 03 -2.03  -6.45  -4.23 
2012 04 -2.65  -9.99  -6.32 
2012 05  3.76  -3.72    . 1 
2012 06  6.32   -.18   3.07 
2012 07  8.45   3.21   5.83 
2012 08  9.35   4.15   6.75 
2012 09  2.92  -1.71    .60 
2012 10 -1.94  -7.29  -4.61 
2012 11 -2.90  -7.59  -5.24 
2012 12 10.22 -16.36 -13.29 
2013 01 -7.94 -14.87 -11.40 
2013 02 -6.97 -15.13 -11.05 
2013 03 -7.79 -17.37 -12.58 
2013 04 -2.51 -10.41  -6.46 
2013 05  5.33  -1.16   2.08 
2013 06  7.43   1.82   4.62 
2013 07 11.09   4.91   8.00 
2013 08  9.02   4.03   6.52 
2013 09  6.41   1.42   3.91 
2013 10  2.97  -2.16    .40 
2013 11 -3.21  -8.24  -5.72 
2013 12 -3.27  -7.63  -5.45 
2014 01 -8.84 -13.05 -10.94 
2014 02 -5.09  -9.43  -7.26 
2014 03 -1.75  -9.26  -5.50 
2014 04  1.85  -6.21  -2.18 
