Guessed all with 3 seconds left! Vietnam was a lucky last guess haha. Did not know that the Vietnamese were one of the largest groups of immigrants.
I am surprised not to see countries with refugees in the list (except Belarus and perhaps Ukraine). The list looks very different from some Western European countries (e.g. Germany, Austria, the Netherlands and Belgium). These countries have refugees from countries such as Syria and Afghanistan.
Poland is not really attractive destination for immigrants from Middle East due to inefficient system of social support for refugees. Not to mention the lower quality of life in comparison with Western Europe countries in general.
Poland isn't exactly a welcoming place for refugees with the exception of the former USSR. Muslim, with the possible exception of Tatars, avoid Poland. The Iraqi and Afghan refugees trying to cross from Belarus to Poland can attest to Poland's lack of hospitality.
I am surprised not to see countries with refugees in the list (except Belarus and perhaps Ukraine). The list looks very different from some Western European countries (e.g. Germany, Austria, the Netherlands and Belgium). These countries have refugees from countries such as Syria and Afghanistan.