Under modern definitions of north & south, southerners are like 2/3rds of China so it’s not particularly surprising. I think there’s less than 500 million “northerners” in total.View attachment 134059
Province ranking for Olympics placement.
Guangdong leads contributing 8 golds followed by Zhejiang and Shanghai with 6 each.
HK and TW have 2 each.
In general southerners have contribute more.
Although what’s interesting in the above chart is the association between wealth of a province & its contribution. The top provinces are the richest. So I assume having more developed facilities and talent pipelines actually play a huge role. Most of the provinces at the bottom are poor, though Anhui is an exception to that rule.