To ask the Secretary of State for Children, Schools and Families (1) what percentage of classes in (a) academy and (b) non-academy secondary schools were taken by unqualified teachers without assistance in academic year (i) 2003-04, (ii) 2004-05, (iii) 2005-06, (iv) 2006-07 and (v) 2007-08; (275681)

The information requested is not collected centrally.