$ million	2020	2019	Change	Constant currency change
Revenue	2,341	2,207	6%	6%
Core revenue	2,341	2,203	6%	6%
Gross profit	1,201	1,088	10%	10%
Core gross profit	1,213	1,095	11%	11%
Operating profit	579	493	17%	23%
Core operating profit	566	508	11%	17%
EBITDA	670	592	13%	18%
Core EBITDA	674	593	14%	18%
Profit attributable to shareholders	431	486	(11)%	(5)%
Core profit attributable to shareholders	408	364	12%	20%
Basic earnings per share (cents)	182.6	200.8	(9)%	(3)%
Core basic earnings per share (cents)	172.9	150.4	15%	23%
Total dividend per share (cents)	50.0	44.0	14%	-
Cash flow from operating activities	464	472	(2)%	-