SK as a country has among the largest proportions of ISTJs according to a sample referenced in the MBTI Manual. I don’t know if this is typing their culture (as opposed to the actual people who live there), but about 20% of the population being ISTJ is surely noteworthy, right? For reference, here are all the percentages of distribution in a sample of 13,308:

ISTJ - 21.57%
ESTJ - 14.22%
ISFJ - 8.18%
ISTP - 7.84%
ISFP - 6.51%
ESFJ - 5.60%
INTJ - 5.48%
ESFP - 5.37%
ESTP - 5.34%
INFP - 3.67%
ENTJ - 3.45%
INTP - 3.31%
ENFP - 3.04%
INFJ - 2.4%
ENTP - 2.19%
ENFJ - 1.84%

This was taken in 1993, but I would be surprised to see a more recent sample give back significantly different results. But even culturally speaking, I don’t really see why South Korea should deviate much from ISTJ, either?

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