Answer:
The number of EU countries that do not use the euro as their currency; the countries are Bulgaria, Croatia, Czech Republic, Denmark, Hungary, Poland, Romania, and Sweden.
Luxembourg is a founding member of the European Union and one of the first countries to adopt the euro on 1 January 1999.
Explanation:
2003 referendum
A referendum held in September 2003 saw 55.9 percent vote against membership of the eurozone. As a consequence, Sweden decided in 2003 not to adopt the euro for the time being. If they had voted in favour, Sweden would have adopted the euro on 1 January 2006.
