2017 £m	2016 £m	2015 £m	2014 £m	2013 £m
Revenue	690.2	600.6	567.2	609.1	619.6
Profit:
Headline operating profit	123.9	99.6	102.1	111.1	107.4
Amortisation of acquired intangible fixed assets	(4.5)	(4.5)	(4.2)	(3.9)	(4.5)
Operating profit prior to exceptional items	119.4	95.1	97.9	107.2	102.9
Acquisition costs	–	(0.6)	–	(0.2)	–
Reorganisation costs	–	–	(20.0)	–	(0.8)
Operating profit	119.4	94.5	77.9	107.0	102.1
Net finance costs	(2.4)	(2.6)	(2.9)	(3.3)	(3.7)
Profit before taxation	117.0	91.9	75.0	103.7	98.4
Taxation	(19.7)	(24.9)	(18.8)	(24.4)	(25.3)
Profit after taxation	97.3	67.0	56.2	79.3	73.1
Non-controlling interests	(0.2)	–	–	0.1	(0.1)
Profit attributable to the equity holders of the parent	97.1	67.0	56.2	79.4	73.0
Headline earnings per share (pence)	49.2	37.0	39.5	43.8	41.2
Dividend per share (pence)	17.4	15.8	15.1	14.4	13.5
Special dividend per share (pence)	25.0	–	10.0	20.0	10.0
Assets employed
Intangible fixed assets	201.0	206.7	175.2	172.1	167.9
Tangible fixed assets	520.5	509.0	429.6	434.6	444.6
Other assets and liabilities	(63.6)	(88.5)	(67.5)	(71.5)	(80.1)
	657.9	627.2	537.3	535.2	532.4
Financed by
Share capital	33.1	33.1	33.1	33.1	33.1
Reserves	663.9	594.8	516.1	537.3	513.7
Shareholders' funds	697.0	627.9	549.2	570.4	546.8
Non-controlling interests	0.5	0.4	0.4	0.5	0.6
Net cash	(39.6)	(1.1)	(12.3)	(35.7)	(15.0)
Capital employed	657.9	627.2	537.3	535.2	532.4
Net assets per share (pence)	364.1	328.0	286.9	297.9	285.6
Return on capital employed (%):
Headline operating profit divided by the average of opening and closing capital employed as adjusted for certain items of goodwill written off	19.3	17.1	19.0	20.7	19.9