The top 4 locations are all in China.
I know for a fact that Chinese teacher-student ratios happen to be on the order of 60 students per classroom, or more. And this is in the good schools, as well as the not-so-good (by their standards, not by ours). And the teachers are not highly paid. And the teachers do not go home at 3pm. And the teachers do not get a summer off.
Liberals lie. And when they get tired of lying, they lie down for awhile before getting up to lie some more.
Asians have a culture that values high educational achievement.
So do Jewish people, Germans, Scandinavians, and people from Trinidad and Tobago just to name a few.
I bet people from these groups score much higher in educational surveys than their peers.