"Figure 1: Expenditure by UK businesses on performing research and development, 1993 to 2017","" "","" "","" "Notes","" "Unit","£ billion" "","" "","Current prices","Constant prices" "1993","8.7","13.7" "1994","8.8","13.8" "1995","9.1","13.8" "1996","9.3","13.6" "1997","9.6","13.9" "1998","10.1","14.5" "1999","11.3","16.1" "2000","11.5","16.1" "2001","12.2","16.9" "2002","12.5","16.8" "2003","12.5","16.5" "2004","12.7","16.3" "2005","13.7","17.2" "2006","14.1","17.2" "2007","15.7","18.6" "2008","15.8","18.3" "2009","15.5","17.7" "2010","16.0","18.0" "2011","17.5","19.3" "2012","17.4","18.9" "2013","18.6","19.8" "2014","20.0","21.0" "2015","21.0","21.9" "2016","22.6","23.0" "2017","23.7","23.7"