The average number of persons employed by the Group (including Directors) during the year, analysed by category, was as follows:

Group
Number of employees
20132012
Office and management9281
Manufacturing271239
Sales155137
Distribution509450
1,027907

The aggregate payroll costs of these persons were as follows:

Group
2013
£000
2012
£000
Wages and salaries (including bonus)20,38219,097
Share based payments91227
Social security costs1,6051,702
Other pension costs (see note 22)1,4251,310
23,50322,336