2019:

January 2019
February 2019
   Survey Results
March 2019
May 2019
September 2019

2018:

January 2018
February 2018
March 2018
May 2018
September 2018
October 2018

2017:

October 2017
September 2017
May 2017
March 2017
February 2017
January 2017

2016:

September 2016
    Bonus On-Line Content
May 2016
March 2016
    Bonus On-Line Content
January 2016
    Bonus On-Line Content

2015:

October 2015
September 2015
May 2015
March 2015
February 2015
January 2015

2014:

May 2014
April 2014
March 2014
January 2014

2013:

November 2013
September 2013
June 2013
April 2013
March 2013
January 2013

2012:

October 2102
September 2102
May 2012
March 2012
February 2012

2011:

October 2011
September 2011
April 2011
March 2011
February 2011

2010:

October 2010
September 2010
May 2010
March 2010
February 2010
January 2010

2009:

October 2009
September 2009
June 2009
April 2009
March 2009
February 2009
January 2009

2008:

October 2008
September 2008
June 2008
April 2008
March 2008
January 2008

2007:

December 2007: Version a Version b
October 2007
September 2007
July 2007
May 2007
April 2007
* Addendum to February 2007 issue
February 2007
January 2007

2006:

November 2006
Sepember 2006
June 2006
April 2006
March 2006
January 2006

2005:

November 2005
September 2005
July 2005
May 2005
April 2005
March 2005
January 2005

2004:

November 2004
September 2004
August 2004
June 2004
May 2004
April 2004
March 2004
January 2004

2003:

November 2003
Summer 2003
April 2003
February 2003
January 2003

2002:

November 2002
September 2002
June 2002
April 2002
March 2002
January 2002

2001:

September 2001
August 2001

2000:

1999:

January 1999
April 1999
July 1999
August 1999
October 1999
December 1999

1998:

January 1998
May 1998
August 1998
October 1998
December 1998

1997:

February 1997
April 1997
August 1997
November 1997

1996:

February 1996
June 1996
August 1996
October 1996
December 1996

1994-95:

Fall 1994
Winter 1995
Spring 1995
Summer 1995
Fall 1995