"Figure 3: Percentage share of total expenditure by UK businesses on performing research and development, by largest industries, 2012 to 2016","" "","" "","" "Notes","" "Unit","% of total" "","" "","2012","2013","2014","2015","2016" " Scientific research and development","27.0","26.2","24.9","25.4","24.0" " Manufacture of motor vehicles trailers and semi-trailers","8.5","9.4","10.2","11.2","13.3" " Manufacture of other transport equipment","8.0","7.7","7.8","7.6","8.2" " Computer programming consultancy and related activities","9.3","8.8","8.3","8.1","7.4" " Architectural and engineering activities","8.0","7.9","8.0","7.8","6.5" " Manufacture of computer electronic and optical products","5.7","5.5","5.0","4.7","4.9"