53 weeks to 3 April 2009	52 weeks to 2 April 2010	52 weeks to 1 April 2011	52 weeks to 30 March 2012	52 weeks to 29 March 2013
Revenue growth	+1.5%	+2.7%	+4.6%	-0.8%	+1.0%
Gross margin	52.1%	54.4%	55.8%	54.8%	54.8%
Operating margin	11.3%	13.5%	13.9%	11.5%	8.8%