The widely repeated claim that only about two percent of Britons speak RP is no more than a rough estimate .
The widely repeated claim that only about two percent of Britons speak RP has been questioned by several writers , most notably by the phonetician J. Windsor Lewis .
The widely repeated claim that only about two percent of Britons speak RP is no more than a rough estimate and has been questioned by several writers , most notably by the phonetician J. Windsor Lewis .