??????? ???? ???? ??? ??? ????? ???? ?? ?? ????? ??? ???? ?? ?? ???? ??? ??? ????? 2? ???. ????? ?? ? ???? ???? ????? 3% ???.
?? ?? ?? ???? ???? ???(1??) ??? ?????, ?????? 140?400?, ???(2?? ?) ??? 102?6000?? ???.
???(2?? ?)? ???(? ???) ??? 58?800?, ???? ??? 91?3200?, ??? ??(3??)? ??? ??? 49?5600?, ???? ??? 69?7200???.
??? ?? kchwang@donga.com