around 2,686,040 or 25.9% of the inhabitants of Sweden were from a foreign background: that is, each such person either had been born abroad or had been born in Sweden to two parents who themselves had both been born abroad. Also taking into account people with only one parent born abroad, this number increases to one third (33.5%). Additionally, the birth rate among immigrant women after arriving in Sweden is somewhat higher than among ethnic Swedes. Taking into account the fact that immigrant women have on average fewer children than Swedish women of comparable age, however, the difference in total birth rate is only 0.1 children more if the woman is foreign born – with the disclaimer that some women may have children not immigrating to and not reported in Sweden, who are thus not included in the statistics. Historical immigration World War II Immigration increased markedly with World War II. Historically, the most numerous of foreign born nationalities are ethnic Germans from Germany and other Scandinavians from Denmark and Norway. In short order, 70,000 war children were evacuated from Finland, of which 15,000 remained in Sweden. Also, many of Denmark's nearly 7,000 Jews who were evacuated to Sweden decided to remain there. A sizable community from the Baltic States (Estonia, Latvia and Lithuania) arrived during the Second World War. 1945 to 1967 During the 1950s and 1960s, the recruitment of immigrant labour was an important factor of immigration. The Nordic countries signed a trade agreement in 1952, establishing a common labour market and free movement across borders. This migration within the Nordic countries, especially from Finland, was essential to create the tax-base required for the expansion of the strong public sector now characteristic of Scandinavia. but the influx gave rise to an anti-Finnish sentiment within Sweden and Norway. This continued until 1967, when the labour market became saturated, and Sweden introduced new immigration controls. On a smaller scale, Sweden took in political refugees from Hungary and the former Czechoslovakia after their countries were invaded by the Soviet Union in 1956 and 1968, respectively. Contemporary immigration Since the early 1970s, immigration to Sweden has been mostly due to refugee migration and family reunification from countries in the Middle East and Latin America. According to Eurostat, in 2010, there were 1.33 million foreign-born residents in Sweden, corresponding to 14.3% of the total population. Of these, 859,000 (64.3%) were born outside the