Since the 1960s, ethnic Germans from the People's Republic of Poland and Soviet Union (especially from Kazakhstan, Russia, and Ukraine), have come to Germany. During the time of Perestroika, and after the dissolution of the Soviet Union, the number of immigrants increased heavily. Some of these immigrants are of mixed ancestry. During the 10-year period between 1987 and 2001, a total of 1,981,732 ethnic Germans from the FSU immigrated to Germany, along with more than a million of their non-German relatives. After 1997, however ethnic Slavs or those belonging to Slavic-Germanic mixed origins outnumbered these with only Germanic descent amongst the immigrants. The total number of people currently living in Germany having FSU connection is around 4 to 4.5 million (Including Germans, Slavs, Jews and those of mixed origins), out of that more than 50% is of German descent.