Tourism has been one of the few areas providing economic relief to southern European countries, particularly Spain, Greece and Portugal, the three eurozone members with the highest unemployment rates. In 2012, the number of foreign visitors to Spain and Portugal will likely remain stable, although domestic tourism in those countries will likely decline. The picture is bleaker in Greece, the European state most dependent on tourism, as political instability and recurrent violence has made the country a less attractive destination for tourists. Overall, the European economic crisis so far has had only a limited impact on Europe's tourism sector. According to Eurostat, the number of holiday trips taken by EU residents has remained stable over the past four years. Indeed, EU resident spending on holidays grew in 2011. But such trips have become shorter on average, and domestic tourism has slowly been replacing international travel.