Key Performance Indicators

52 weeks
to 30 March
2012		52 weeks
to 29 March
2013		52 weeks
to 28 March
2014		52 weeks
to 27 March
2015		52 weeks
to 1 April
2016
Revenue growth—0.8%+1.0%+7.9%+6.9%+1.7%
Gross margin54.8%54.8%53.7%53.2%53.2%
Operating margin11.5%8.8%8.3%8.4%8.3%
Underlying Group EBITDA£123.6m£103.4m£101.1m£109.9m£114.6m
Net debt(£139.2m)(£110.6m)(£99.6m)(£61.8m)(£47.9m)