?????? 16??? ??? ??? ???? 0.6? ?? 17.2??? ??? ???? ????? 8? ???. ??? ‘????’(17.5?)?? ??? ? ????.
?? ??? ?? ??? ?? ????? ??? ?? ??? ??? ???. ?????? ??? ??? ??? ???? 2014? 11? 18.5??? ??? 17.8?? ??? ? 3? 5?? ???.
??? ???? ???? ???? ? 50%?? ? ? 80% ??? ??? ????. 2?? ????? ????? 18%?? ???? ??. ??? ???? ??? ???? ?? ?? ?? ??? ???? ???? ??? ???. ??? ????? ??? ?? ??? ?????? ????? ???? ‘??? 16.9’, ??? ‘????’, ????? ‘??’?? ?? 16.9??.
??? ?? byhuman@donga.com
??? ??koh@donga.com