„Recent statistics from the Korean National Statistics Office showed that expenditures of private tutoring in Korea were about 3 percent of GDP in 2009.“
Ji Yun Lee, „Private Tutoring and its Impact on Students‘ Academic Achievement, Formal Schooling, and Educational Inequality in Korea“ (2013), S. 2
In Österreich sind es etwa 0,03 % des BIP, also ein Hundertstel des südkoreanischen Aufwands