老美median 家庭收入大概$75K，老留中留多数是当地的上中产，大概top 15%家庭收入。

来源: 于 2023-09-20 16:32:00 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

"Sociologists Dennis Gilbert, William Thompson and Joseph Hickey estimate the upper middle class to constitute roughly 15% of the population. "

https://en.wikipedia.org/wiki/Upper_middle_class