???? ‘北?? ??’ ??
??? ??? ?? ??? ?? ??? 40% ??? ??? ??? ??? ?? ??? ????? ???? ??? ???.
26? ???? ???? ????? ??? ???? ???? ?? ?? 24? ??? 19? ?? ?? 700?? ???? ?? ??? ? ??(???? 95% ????? ±3.7%???) ??? ??? ?? ?? ???? 44.8%? ‘?????? ??? ?? ??? ????’? ????. ? ?? ???? 33.5%? ‘????? ?? ???? ??? ??? ??’, 16.2%? ‘??? ??? ???? ??? ????? ???? ??’? ???.
????? 20?? ??? 30?, 40?, 50? ???? ?? ‘?????? ??? ?? ??? ????’? ??? ?? ?? ???. 20?? ?? ‘????? ?? ???? ??? ??? ??’? ??(45.3%)? ‘?????? ??? ???? ??’? ??(27.2%)?? ???.
???? ???? 45.5%, ??? ???? 45.4%? ‘?????? ??? ?? ??? ????’? ??? ? ??? ???.
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