GDP is not and never has been a measure of wealth. It's a measure of a country's output. Higher GDP could just mean you're working longer and harder.
Which is why we also publish a median (50th percentile) per capita (per person) number too. And its a measure of income, not wealth.
Which is why we also publish a median (50th percentile) per capita (per person) number too. And its a measure of income, not wealth.