? ????? ?? ?? ?????? ????? ???? ????? ????.
○…???????? 26??? ????? ?? ?????? ??, ??? ???? ????? ???? ?? 10～52% ??????.
? ??? ???? ????? ????? ?8?5?? ?? ? 2?5?? ??? 20～50% ??????.
○…????? ??? 8?? ?????? 19??? ????? 30%?? ?? ????.
? ??? ?????? 1??? 1?2???? 8????, ?????? 1???? 7????, ???? 7???? 5???? ?? ????.
![[?? ????]??? ???](https://dimg.donga.com/a/180/101/95/2/wps/NEWS/IMAGE/2000/12/18/6803059.1.jpg)
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