Which european country has the biggest percentage of their jewish population murdered?

The Holocaust is the areas surrounded by today's Poland, Austria countries where the jews were killed by Nazis of Germany. The Holocaust areas populated and estimated around six million jews were living there before 1933. Nazi's troops lead by Adolf Hitler, a dictator ruled Germany. In Holocaust the Jews were killed by Nazis troop systematically. Sending the jews captives in a evacuation chamber and killed them by suffocation / strong inhaling by poisonous gases/Gun shot etc., Jews also killed by starvation after long torture. Even women and children also killed mercilessly. The Nazi troops felt difficult to count the killing, so they wear an iron ring to the wrist of Jews and killed by gunshot / vacuum chamber treatment / hang on death - After that the corpses were burnt then the rings are counted and given as report to Hitler that how many Jews were killed on that day / week or a month. These huge genocide were not reported in Germany else anywhere in the world. These truths are comes to light after Hitler's death and after second world war.