These files were sourced from either Department for Children, Schools and Families (for England), the Scottish Government, the Welsh Assembly or the Department of Education (for Northern Ireland)
In the case of England, Wales and Northern Ireland KS2 refers to Key stage 2 descriptives, KS4 to Key stage 4 and KS5 to Key Stage 5. For Scotland S4 refers to Secondary 4, S6 to Secondary 6. HiQ refers to Highest Qualifications of the adult population, Basic_Skills to the basic skills levels of the population. Please see main report for details, in particular chapters 2, 3, 9 and 10.