In Western Europe, consultative referendums are the norm. As an example, 17 of the 29 referendums concerning European integration have been consultative. Although Denmark, Norway, Finland, Greece and Italy all have complete systems for holding binding referendums, they have all held consultative referendums without having a legal foundation for doing so. The UK, which has no referendum legislation at all, has held a consultative referendum on the issue of whether or not to remain in the EU. Belgium and Luxemburg "only" have a consultative referendum system. Spain and Sweden have a system allowing both binding and consultative referendums.