????, 3??? ??? ??
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???? ?????? ? ?? 700? ?? ?? ??????? ???? ?? ???? ???? 2017? ???? ??? ?? ????. 1? ???? ?? ??? ?? ???? ??? ?? ?????, ??? ? 19???. ??? ?????? ??? ???(2.6%)?? 2017??? ?? ??? 3? ?? 2%? ???? ???? ??. ?? 3% ??? ???? 2? ?? ??? ??? 2008?(2.9%)? 2009?(0.7%), 2012?(2.3%)? 2013?(2.9%) ? ? ?????.
?? ????? ?? 3.0%, ?? 3.2%? ???? ???? ?? ???? ???? ????? ???? ??? ??? ??. ??? 1? ??? ???? 18.5% ???? ? ???? 3%? ??? ‘???’? ?? ????. ??? ‘21? ?+α(??)’ ??? ?? ???? ??? ???? ???? ??? ???? ????? ??? ??.
??? ?? yunjung@donga.com