Even by global standards (compared against all countries) it did fairly well. By socialist standards it did really well. By German standards, it did so much worse than Austria, Switzerland or West Germany.
I don't think you want that for Canada. And that's pretty much a best case outcome.
https://en.m.wikipedia.org/wiki/Overseas_Chinese
how to quantify "by and large"? there's not many chinese people outside china and most of them left china in the last 100 years in search of better lives.
and usa and singapore are rich?
> [...] there's not many chinese people outside china and most of them left china in the last 100 years in search of better lives.
Wikipedia says:
> Overseas Chinese people are people of Chinese origin who reside outside Greater China (mainland China, Hong Kong, Macau, and Taiwan).[20] As of 2011, there were over 40.3 million overseas Chinese.[8]
40.3 million is quite a few. And they form significant minorities in many South East Asian countries.
But you are right that eg Germany or South Sudon don't really have enough Chinese people to really say much about them there.
I grew up in Europe, but am now living in Singapore. It's interesting: despite all the PRC's advances and progress in the last few decades, they are still the poorest Chinese-majority country. You can go even wider, and look at countries with sizeable Chinese minorities, like Malaysia or Thailand, and I think you will find that the average ethnic Chinese person there also makes more than the average ethnic Chinese person does in the PRC.
I haven't checked the numbers for all of the relevant countries, but I think it's fair to say that by and large, PR China has the poorest ethnically Chinese people.