[????] SK?? ??? ?? ??? ??

■SK??? 13??? ?????? ?????? ????. SK??? ????? ?????? △???? 2?? ????? ????? 0.5%?? 0.45% △2?～5?? ??? 0.45%+10???? 0.40%+10?? △5????? 0.40%+35???? 0.35%+35???? ?? ????. ????? ? ????? ???? ????? ????.