During 2003-2012, economies of most EU countries, have gone through periods of growth and decline, the most significant decline being recorded in 2009, due to strong economic crisis which has affect the EU and not only. The main purpose of this article is to assess the impact that the economic crisis has had on each of the five former communist countries analyzed, namely Romania, Czech Republic, Poland, Hungary and Bulgaria. This study is a comparative statistical analysis of evolutions of the volumes of exports and imports both within EU and outside. It also, are analyzed their trade balances evolutions, and were identified, for three of them, among which Romania, valid models of evolution for the period under review.