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????? ? ? ???? ?? 38?4000?? ???? ??? ????.
????? ?? ?? ????? ?? ??? 2277?? ???? ‘??? ??? ??? ??’? ??? ??, ?? ???? 69.3%? ?? ???? ??? ???? ‘???’? ?????, ? ? 24.4%? ‘?? ???’? ??.
????? ? ? ??? ??? ???? 20~30??? 28.3%? ?? ???, ?? 30~40??(26.8%), 40~50??(18.4%), 20?? ??(15.3%), 50~60??(4.9%), 60~80??(4.5%), 80?? ??(1.8%) ??? ????.
?? ??? 10?? 7??(72%) ?????? ???? ???? ?? ??? ?????, ? ??? ? ???? 50% ??? ?????? ????? ??? 41.7%? ?? 3? ?? ?? 34.3%? ?? 7.4%??? ???.
? ??? ???? ‘?? ???? ???’? ??? ?? 31.2%?? 28%? 3.2%??? ?? ??? ?? ??? ???? ?? ??? ??? ????.
????? ????? ????? ???? ?? ???? ???(28%), 90~100%(20.3%), 30~50%(12.1%), 10~30%(11.4%), 50~70%(11.1%), 70~90%(10.3%), 1~10%(6.8%) ????.
??? ???? ?? hoon149@donga.com