[Dodoerabe]

Are you suggesting that specific grammar leads to higher life standard, or it is more vocabulary, or maybe


No, I am surely you are suggesting some secret 'racial' factor. Did you research this factor?

btw there are another keys to the classification

More than half of those countries have direct access to Northern Sea. Most have access to the ocean/ sea. May it be a factor?
Nearly all are located in mild oceanic climate zone, may it be a factor?
Most are protestant religion, maybe this?

No, I am sure its race. Must be. Adolf Hitler was right.