The American Jewish committee began archiving statistics of Jewish populations around the world beginning in 1900 and for Finland, they showed no Jewish population there until 1920 and they had 2,000 Jews, 1930 =1,700 Jews, 1940= 1,700, 1950=1,800, 1960=1,900, and today =1,300. What were they doing to keep the Jewish population of Finland at a very low number?