1975 01 -3.77  -6.46  -5.11 
1980 09 11.23   7.42   9.32 
1980 10  5.69   2.42   4.05 
1982 07 12.86   6.91   9.88 
1985 02 -2.50  -5.25  -3.87 
1986 01 -2.73  -5.91  -4.31 
1986 03 -1.50  -4.19  -2.84 
1986 04  1.62   -.83    .39 
1987 10  6.88   3.42   5.15 
1988 02 -4.23  -6.29  -5.26 
1988 12   .-6  -2.81  -1.43 
1991 05  4.59   1.07   2.83 
1993 08 13.21   7.93  10.57 
1993 10  7.91   4.94   6.42 
1993 11  1.84   -.92    .46 
1994 02 -1.16  -3.60  -2.37 
1994 03  -.84  -2.79  -1.81 
1994 04   .99   -.93    . 3 
1994 12 -1.76  -4.66  -3.21 
1995 02 -2.09  -4.56  -3.33 
1995 04   .92  -1.49   -.28 
1995 05  6.19   1.30   3.74 
1995 06  8.83   4.23   6.53 
1995 07 12.77   8.17  10.47 
1995 08 12.24   8.56  10.40 
1995 09 13.03   8.38  10.70 
1995 10  7.76   4.33   6.04 
1995 11  4.76   1.40   3.08 
1995 12  1.44   -.86    .29 
1996 01  -.88  -3.33  -2.10 
1996 02 -2.92  -6.25  -4.58 
1996 03 -1.72  -4.17  -2.94 
1996 04  1.03  -1.50   -.23 
1996 05  6.29   1.94   4.11 
1996 06 11.03   4.67   7.85 
1996 07 12.21   7.98  10.09 
1996 08 14.55   9.17  11.86 
1996 09 12.39   7.86  10.12 
1996 10  9.25   5.06   7.15 
1996 11  1.68  -1.30    .19 
1996 12   .88  -2.67   -.89 
1997 02 -2.52  -5.37  -3.94 
1997 03  -.52  -2.92  -1.72 
1997 04  2.36   -.66    .85 
1997 05  4.42   1.04   2.73 
1997 06 10.53   5.01   7.77 
1997 07 11.97   8.08  10.02 
1997 08 13.73   9.45  11.59 
1997 09 12.38   7.74  10.05 
1997 10  9.47   5.62   7.54 
1997 12  -.43  -3.75  -2.08 
1998 02 -4.42  -6.82  -5.62 
1998 03 -1.56  -4.50  -3.03 
1998 04   .70  -2.34   -.82 
1998 05  4.23    .89   2.56 
1998 06 12.16   5.59   8.87 
1998 07 13.91   9.28  11.59 
1998 09 13.06   8.64  10.85 
1998 11  1.68   -.97    .35 
1999 02 -4.73  -7.31  -6.02 
1999 05  3.19    .62   1.90 
1999 06  7.46   2.99   5.22 
1999 07 12.44   6.93   9.68 
1999 10  7.37   4.16   5.76 
1999 11  2.31  -1.03    .64 
2000 01 -1.91  -5.42  -3.66 
2000 02 -4.60  -7.21  -5.90 
2000 03 -3.28  -5.90  -4.59 
2000 05  4.03    .89   2.46 
2000 06  8.08   4.21   6.14 
2000 07 11.35   7.90   9.62 
2000 08 14.80   8.70  11.75 
2000 09 12.37   8.28  10.32 
2000 10  7.83   4.17   6.00 
2000 11  -.11  -3.05  -1.58 
2000 12 -2.72  -5.60  -4.16 
2001 01 -3.93  -6.69  -5.31 
2001 02 -8.72 -11.57 -10.14 
2001 03 -1.78  -5.46  -3.62 
2001 04  1.07  -1.79   -.35 
2001 05  3.08    .45   1.76 
2001 06  7.28   3.89   5.58 
2001 09 12.03   7.29   9.66 
2001 10  6.15   2.67   4.41 
2001 11  1.49  -1.22    .13 
2001 12 -1.95  -4.71  -3.33 
2002 01 -1.89  -4.57  -3.23 
2002 02 -1.80  -4.27  -3.03 
2002 03 -1.57  -4.42  -2.99 
2002 04  2.70   -.74    .98 
2002 05  7.99   2.67   5.33 
2002 07 12.33   7.41   9.87 
2002 08 11.17   8.37   9.77 
2002 09 13.32   8.71  11.01 
2002 10  7.24   4.23   5.74 
2002 11  2.31    .28   1.29 
2002 12 -2.66  -4.46  -3.56 
2003 01 -3.25  -5.53  -4.39 
2003 02 -2.61  -4.76  -3.68 
2003 03 -1.72  -3.87  -2.79 
2003 05  4.21   1.10   2.66 
2003 06 10.54   5.40   7.97 
2003 07 14.82   9.28  12.04 
2003 08 13.60   9.67  11.63 
2003 09 11.35   8.34   9.84 
2003 10  8.28   4.84   6.56 
2003 11  1.85  -1.25    .30 
2003 12 -2.55  -4.50  -3.52 
2004 01 -2.29  -4.26  -3.27 
2004 02 -2.23  -4.65  -3.44 
2004 03 -1.31  -3.64  -2.47 
2004 04   .90  -1.48   -.29 
2004 05  4.54   1.21   2.87 
2004 06  8.47   4.03   6.25 
2004 07 11.84   8.59  10.21 
2004 08 12.88   9.17  11.02 
2004 09 12.69   8.39  10.54 
2004 10  7.30   3.88   5.59 
2004 11  2.65    . 3   1.34 
2004 12 -1.29  -3.50  -2.39 
2005 01 -3.20  -5.36  -4.28 
2005 02 -3.26  -5.27  -4.26 
2005 03  -.77  -2.94  -1.85 
2005 04  1.00   -.61    .19 
2005 05  4.65   1.52   3.08 
2005 06  9.72   4.40   7.06 
2005 07 11.52   7.16   9.34 
2005 08 14.00   9.68  11.84 
2005 09 13.06   8.72  10.89 
2005 10  8.45   4.91   6.68 
2005 11  4.17   1.70   2.93 
2005 12  -.50  -2.73  -1.61 
2006 02 -4.02  -6.64  -5.33 
2006 03 -1.55  -3.73  -2.64 
2006 04   .34  -1.82   -.74 
2006 05  3.99   1.13   2.56 
2006 06  9.22   4.44   6.83 
2006 07 12.63   7.33   9.97 
2006 08 14.26  10.22  12.24 
2006 09 13.54   9.17  11.35 
2006 10  7.91   4.33   6.12 
2006 11  3.87   1.36   2.61 
2006 12 -2.68  -4.59  -3.63 
2007 01 -4.01  -5.88  -4.94 
2007 02 -4.91  -6.96  -5.93 
2007 03  -.77  -2.92  -1.84 
2007 04   .43  -2.31   -.93 
2007 05  4.07   1.77   2.92 
2007 06  8.97   5.77   7.37 
2007 07 10.62   7.22   8.92 
2007 08 15.05   9.71  12.38 
2007 09 13.12   8.57  10.84 
2007 10  7.77   4.00   5.88 
2007 11  1.53   -.62    .45 
2007 12 -2.05  -4.15  -3.10 
2008 01 -4.48  -6.76  -5.62 
2008 02 -4.28  -6.30  -5.29 
2008 03  -.45  -2.53  -1.49 
2008 04  2.27   -.99    .64 
2008 05  3.74   1.28   2.51 
2008 06  9.76   5.31   7.53 
2008 07 13.16   8.55  10.85 
2008 08 14.12  10.05  12.08 
2008 09 13.87   9.45  11.66 
2008 10  8.01   4.89   6.45 
2008 11  3.00    .83   1.91 
2008 12  1.24  -2.07   -.41 
2009 01 -1.27  -3.14  -2.20 
2009 02 -3.71  -5.81  -4.76 
2009 03 -1.01  -2.96  -1.98 
2009 04  1.24  -1.19    . 2 
2009 05  5.60   1.92   3.76 
2009 06 11.13   4.83   7.98 
2009 07 13.93   8.28  11.10 
2009 08 14.62   9.72  12.17 
2009 09 12.02   7.61   9.81 
2009 10  8.20   5.24   6.72 
2009 11   .98  -1.71   -.36 
2009 12 -1.38  -3.55  -2.46 
2010 01 -2.28  -4.96  -3.62 
2010 02 -3.54  -5.98  -4.76 
2010 03 -3.90  -6.00  -4.94 
2010 04  -.96  -3.73  -2.34 
2010 05  3.87    .44   2.15 
2010 06 10.73   4.85   7.79 
2010 07 11.62   7.31   9.46 
2010 08 14.54   9.22  11.88 
2010 09 12.80   9.10  10.95 
2010 10  7.34   4.55   5.94 
2010 11  3.00    .47   1.73 
2010 12  1.78   -.66    .55 
2011 01 -2.36  -4.60  -3.48 
2011 02 -2.33  -4.80  -3.56 
2011 03 -1.63  -3.89  -2.76 
2011 04  1.02   -.80    .10 
2011 05  4.06   1.04   2.55 
2011 06  9.68   5.54   7.61 
2011 07 13.40   8.81  11.10 
2011 08 15.83  10.95  13.39 
2011 09 13.67   9.55  11.61 
2011 10  8.64   4.96   6.80 
2011 11  2.36    .30   1.33 
2011 12 -2.31  -4.48  -3.40 
2012 01 -2.39  -4.30  -3.34 
2012 02 -4.00  -6.09  -5.04 
2012 03 -3.23  -5.95  -4.59 
2012 04  2.05  -1.17    .43 
2012 05  4.96   1.22   3.09 
2012 06 12.41   5.88   9.14 
2012 07 12.50   8.96  10.73 
2012 08 16.10  10.25  13.17 
2012 09 14.45   8.85  11.65 
2012 10  8.74   5.00   6.87 
2012 11  4.11   1.04   2.58 
2012 12  -.67  -3.43  -2.05 
2013 01 -1.69  -4.21  -2.95 
2013 02 -2.08  -5.38  -3.73 
2013 03 -1.71  -5.00  -3.35 
2013 04  1.04  -1.16    .-6 
2013 05  4.05   1.08   2.56 
2013 06 11.63   5.49   8.55 
2013 07 14.59   9.08  11.83 
2013 08 15.92  10.30  13.11 
2013 09 13.84   8.77  11.30 
2013 10  7.58   4.10   5.84 
2013 11  4.27    .80   2.53 
