"Figure 1: R&D expenditure by businesses in the UK","" "","" "","" "Notes","" "Unit","£ billion" "","" "","Current prices","Constant prices" "1985","5.0","10.8" "1986","5.8","12.2" "1987","6.2","12.2" "1988","6.7","12.5" "1989","7.4","13.0" "1990","8.1","13.1" "1991","7.8","12.0" "1992","8.2","12.2" "1993","8.7","12.8" "1994","8.8","12.8" "1995","9.1","12.8" "1996","9.3","12.8" "1997","9.6","13.3" "1998","10.1","13.9" "1999","11.3","15.2" "2000","11.5","15.4" "2001","12.2","15.9" "2002","12.5","15.8" "2003","12.5","15.6" "2004","12.7","15.3" "2005","13.7","16.3" "2006","14.1","16.4" "2007","15.7","17.7" "2008","15.8","17.4" "2009","15.5","16.6" "2010","16.0","16.7" "2011","17.5","17.8" "2012","17.1","17.1"