 Catalonia and the Basque Country, together with Madrid and Navarre, are still the wealthiest parts of Spain in terms of GDP per head, and this has fuelled conflict between the regions and the centre over regional autonomy in taxation and over policies for redistribution between richer and poorer regions.Eurobarometer surveys throughout Europe asked people to "rate their attachment to their region" and to their country, EU, and local area.From this data a "regionalism index" was constructed.