The poll , done by the Washington-based Pew Research Centre, was conducted from 7 April to 13 May in the six most populous EU members – France, Germany, Italy, Poland, Spain and the United Kingdom – and involved 6,000 telephone or face-to-face interviews. Each of these countries now has its own Eurosceptic or  'Eurocritical' party. Some are new like Italy's Five Star Movement, Poland's Congress of the New Right, Spain's Podemos and Germany's Alternative for Germany. Others have been around…