The economy of Italy is a highly developed social market economy. It is the third-largest national economy in the European Union, the 10th-largest in the world by nominal GDP, and the 12th-largest by GDP (PPP). Italy is a founding member of the European Union, the Eurozone, the OECD, the G7 and the G20; it is the eighth-largest exporter in the world, with $611 billion exported in 2021. Its closest trade ties are with the other countries of the European Union, with whom it conducts about 59% of its total trade. The largest trading partners, in order of market share in exports, are Germany (12.5%), France (10.3%), the United States (9%), Spain (5.2%), the United Kingdom (5.2%) and Switzerland (4.6%).