 Complete the following phrase:  In 1989, there were 22,900 Jews in Latvia, who comprised some 0.9 of the population. That same year Soviet Union allowed unrestricted Jewish immigration, and 1,588 Jews emigrated from Latvia 1,536 of them from Riga. In 1990, 3,388 Latvian Jews immigrated to Israel 2,837 of them from Riga. In 1991, the number of immigrants to Israel from Riga was 1,087. That same year, the Soviet Union 