"Figure 13: Improvements to our measures of quality in education have reduced the growth seen in quality adjusted output","" "Comparing quality adjusted and non-quality adjusted output growth in education for last year’s estimates and this year’s estimates, UK, 1997 to 2018","" "","" "Notes","" "Unit","Index, 1997 = 100" "","" "","2017 QA","2017 NQA","2018 QA","2018 NQA" "1997","100","100","100","100" "1998","101.9","100.2","102","100.2" "1999","104.2","101","104.4","101" "2000","106.2","101.6","106.5","101.6" "2001","108.6","102.4","109.2","102.6" "2002","111.7","103.7","112.3","103.8" "2003","114.9","104.7","115.2","104.8" "2004","118.4","105.5","118.6","105.6" "2005","120.9","105","120.3","105" "2006","122.4","103.5","120.8","103.2" "2007","124.6","102.4","122.5","102.2" "2008","127.1","101.7","124.2","101.6" "2009","130.2","101.6","126.4","101.6" "2010","131.9","101.5","127.7","101.4" "2011","134.2","102.9","130.2","103.2" "2012","137.1","104.9","132.8","105.1" "2013","138.1","105.6","133.7","105.7" "2014","140.1","107","135.5","107.1" "2015","141.8","107.9","136.8","107.8" "2016","142.6","108.2","138.1","108.2" "2017","144.3","108.7","139.3","109.2" "2018","","","140.7","110.2"