I would also like to point out my concern for using 'Stage 4' as a starting point or average for Chinese people. Just a disclaimer, my wife is Chinese and I have spent some time over there. I could agree you could call them a 4 if this were centuries ago but today, China is fiercely capitalistic. People there value money far more than life and even 'buy money' to take with them to the afterlife. If someone injures you with their car, and you are alive, they will back over you as any times as they need to have you die. Because in their mentality, it is cheaper for them. We have all seen many horror stories of injured children left by the road with dozens of passers by ignoring their cries until they are run over again. We have heard what Chinese companies did to their baby food, how they used lead paint in children's toys despite it being banned for good reason. We know about the 'gutter oil' where they dredge up sewage, refine it a little and sell it off as cooking oil, or their 'fake foods' where they use cardboard or other toxic chemicals to enhance their profit taking
The government in China is also accused of some very gross human rights violations and information is constantly manipulated and supressed from its people.
For Chinese to be judged as anywhere near a 4 is concerning and doesn't reflect the real world. There have been some notable individuals who have risen above the selfish greed but for the most part, China is nothing like what you have read. That culture that you read in books no longer exists. I would regard many Chinese to be at level 17 because empathy and altruism are traits that Chinese people (most, not all) do not have (or only have to their immediate family - never anyone outside it). They are too concerned with profit as money is their God