The economy of Spain is the 13th-largest economy in the world, the fifth-largest in the European Union, and the fourth-largest in the Eurozone, based on nominal GDP comparisons. Spain is regarded as the world's 23rd most developed country, among the countries of very high human development. Between 2008 and 2012 the economic boom of the 2000s was reversed, leaving a quarter of Spain's workforce unemployed by 2012