???, 20? ‘??? ??’ ??
?? ?? 10? ? 7?? ??? ??? ???? ?? ??? ????? ?? ??? ???. ??? ??? ???? ??? ?? ???? ??? ?? ?? ???? ???.
???????? 12? ?????? ?????? ??? ??? 20? ?? 542?? ???? ‘?? ??? ?? ????’? ??? ?? 69.5%? ??? ??? ??? ???? ??? ???. 62.9%? ?? ??? ??? ??? ???? ???? ??? ???.
‘?? ????? ?? ??? ??? ????’? ?? ??? ?? 40.2%? 3000?~4000? ???? ???. 4000?~5000? ???? ?? ???? 20.6%, 2000?~3000? ???? ?? ???? 15.2%??.
???? 65.2%? ???? ??? ??? ???? ??? ?? ???? ???? ????. ??? ?? ?? ??? 61~65?(30.1%)? ?? ???, 56~60?(26.3%), 65? ??(19.7%)? ?? ???. ?? ??? ?? ?? ??? ???? ??? ???? ??? 63.9%? ???.
???? 70.4%? ??? ?? ??? ???? ??? ??? ? ???? ??? ???. ???? ?? ??? ????? ??? △??? ??(24.7%·????) △?? ??(21.5%) △?? ??(20.4%) ?? ???. ?? ??? ???? ???? 29.2%? ??? ?? ??? ?? ??? ?????? ???.
???? ???? ??? ??? 10?~20? ?(23.5%) ??? ?? ???. 20?~50? ?(22.9%), 100?~1000? ?(20.6%) ?? ??? ?? ???.
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