Until the mid-1990s the opinion was widespread that Germany is not a country of immigration , even though about 20 % of the population were of non-German origin .
During the last decade of the 20th century , Germany changed its attitude towards immigrants .
Until the mid-1990s the opinion was widespread that Germany is not a country of immigration , even though about 20 % of the population were of Germany origin .
During the last decade of the 20th century , Germany changed its attitude towards immigrants .