Thanks for the information @dana-edwards. I'm not a fan of GDP as a indicator of wealth, income, prosperity, or growth. I prefer real median wages, this way incomes are not distorted by the fat cat outliers (one-percenters). The Gini coefficient of almost all western countries is climbing even though GDP is on the up. This is an indication that the rich are the reason for improved GDP while the rest of society are stagnated.

In fact, I rather rely on happiness statistics. I believe Cryptocurrencies could add greatly to happiness because of the extra freedom it offers people.