Jewish immigration from Ukraine

I forgot to blog about it at the time (from Times or Post) but there was this long story in which it is alleged that waves of anti-Semitic attacks in Ukraine have led to waves of Jewish immigration to Israel, and the article mentioned that rates of immigration to Israel "doubled".  I checked the figures: they increased from something like 2000 to 4000. Hardly a phenomenon.  Also, which side is more responsible for anti-Semitism in the Ukraine: the pro-US side or its opponents?