Items in analysis 2024 Self-Study in August 2024 Aug 1 2017 Self-Study in June 2017 Jun 1 2017 Self-Study in February 2017 Feb 1 2016 Self-Study in April 2016 Apr 1 2016 Self-Study in March 2016 Mar 2 2016 Self-Study in February 2016 Feb 1 2016 Self-Study in January 2016 Jan 1 2015 Self-Study in September 2015 Sep 1 2015 Self-Study in August 2015 Aug 2