Key numbers

Market value: £5.2bn

Dividend yield (Dec 2017 estimate): 3.8pc

Turnover ((Dec 2017 estimate): £4.6bn

Pre-tax profits (Dec 2017 estimate): £481m

Net debt (Dec 2016): £2.5bn

Return on capital (Dec 2016): 9.6pc

Cash conversion (Dec 2016): 151pc

p/e ratio (Dec 17 estimate): 13 times