30, 40? ??? ??
20?? ??? ??
?? ?? ????? ??? ??? ??? ???? ??? ??? ??? ??? ???? ???. ??? 25? ????? ? ??? ? ???? 1.4%??? ???? ???? 8.8%??? ?? ????.
? ??? 30?(40.7%)? 40?(46.4%)??, ? ??? 20?(42.2%)?? ????.
????? ? ??? ?????(43.8%)? ????(45.0%), ???(44.0%)?? ????? ?? ???? ??? ?? ????? ??? ??? ?? ???.
??? ?? koh@donga.com
??? ?? leon@donga.com