?????? ???? ??? ???? ?? ????? ??? ‘???’? ???? ?? ??? ?? ??.
?????? “??????? ???? ?? ?? ?? ?? ?? ????? ???? ???? ?? ?”??? ???? ??? ??? ???? ?? “??? ???? ????? ??? ?? ??”? ????.
?????? 21? ??PCS ??? 312?? ???? ???? ??? ??? ?? ????? ????? ???.
“??? ?? ?? ?? ??? ???? ?? ??? ??”? ??? 61.2%? ?? ???. ‘????? ?? ???? ?? ???? ??? ????? ?’?? ??? 20.8%? ????. ‘????’? 18.0%. ‘???? ??’?? ??? 20? 62.9%, 30? 57.0% , 40? ?? 70.3% ??? ????? ??? ??? ??? ????? ???. ??(58.9%) ?? ??(76.2%)? ??????.
‘???? ?? ?? ?? ??? ??? ??? ??? ???’?? ???? 57.1%? ‘??? ??? ??’? ????. ‘????’? ??? 36.5%? ??.
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