Statistics of membership between 1680 and 1840 demonstrate that the established Church of England lost one-fifth of its membership. In addition, an ever-increasing number of nominal Anglicans also ceasing to practise. Nonconformity more than quadrupled, mainly from 1760 and especially after 1800. In 1800 there were twice as many Anglican churches as Nonconformist chapels; in 1850, chapels outnumbered churches by a ratio of 5 to 2. Roman Catholicism kept pace with demographic growth, but, even reinforced by Irish immigration, remained a limited force in 1840. Judaism and overt irreligion were both rare.