En España estamos muy contentos de no tener judíos.

No the growth was post WWII. Most of it was Jewish migration from the Maghreb (North Africa) when those countries received or gained independence. In Algeria virtually all the Jews were expelled along with the French “Pied Noir” settlers. In Morocco it was a much longer process (from 1956). In Spain there was some migration of Sephardi Jews to Spain during the War. Franco let in about 8,000, mainly from Greece and Yugoslavia (who spoke Ladino, or Old Spanish).

Why? They barely maintained equal numbers when normal population growth should show significantly higher numbers.

Interestingly, the countries that show at least something resembling normal growth (not really, but growth anyway) are France and Spain- but I suspect this is largely because of movement of European Jews West as the Nazi’s came to power and then stuck around. I’m guessing once you factor out the holocaust and immigration to Israel, the vast majority of the rest ended up in the United States.

Israel – 6,014,300
United States – 5,425,000
France – 478,000
Canada – 380,000
United Kingdom – 290,000
Russian Federation – 190,000
Argentina – 181,500
Germany – 118,000
Australia – 112,500
Brazil – 95,200