National Summary:    Revised figures for 2006 show that in maintained schools 57.5 per cent of pupils at the end of Key Stage 4 achieved 5 or more GCSE and equivalents at grades A*-C up from 45.1 per cent of 15 year olds in 1997. Revised figures for 2006 show that 90.8 per cent of pupils at the end of Key Stage 4 achieved 5 or more GCSE and equivalents at grades A*-G up from 87.0 per cent of 15 year olds in 1997.