Joseph: That’s not fair. You’re talking sheer numbers. We can find 65-year periods where more Jews died per capita. In fact, probably in every single 65-year period in history more Jews per capita were killed than there have been in Israel in the last 65 years.
Also, learn some Gemara. It’s very hard to actually give the death penalty. You need Hasra’ah and for the person to acknowledge that he received the Hasra’ah then do it anyway. The most people Beis Din would end up executing would be once every few years. At absolute most.