the uk DofE are themselves guilty of the same crime. The school league tables do not include gcse statistics for key stage 3 students. This is because students in state schools don't take gcses before ks4- only private schools offer them. In order not to draw attention to the academic superiority of private schools and embarrass the state run schools, they simply ignore those gcse results! this artificially "improves" the quality of state education vs private.