Figures on the percentage of unauthorised absence for each local authority from 1997 onwards is available in the House of Commons Library. Figures on the total number of unauthorised absence broken down by local authority and government office region are available only at a disproportionate cost.
Unauthorised absence is absence without leave from a teacher or other authorised representative of the school. This includes all unexplained or unjustified absences, such as lateness, holidays during term time not authorised by the school, absence where reason is not yet established and truancy.