The Economist has a useful comparison of GDP per capita, but also adjusted for cost differences and working hours.
The ranking looks like this:
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I wanted to look up China, so I found it.
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Western media make fun of the CCP when it claims China is still a developing country, but the data
does give credence to the idea. Yes, eastern coastal cities are very shiny and beautiful. But the people living in the country are still quite poor, especially once you adjust for China's much longer working hours. That should support a higher growth rate going forward, given substantial distance to the frontier.