???? ??? (%) ????????????????20? 7.247.3 45.124.820.153.730?11.633.554.427.614.856.440?24.526.747.922.930.645.250? ??45.013.438.117.748.330.7
?? ?? ?? ??? ??? ?? ???? ??? ??? ????? ??? ?????.
20?? 30?? ??? ?? ???? ??? ???, 50? ??? ????. 40?? ‘??’? ‘??’? ????.
??? ??? 20?? 30?? ‘??’? ??, 40? ??? ‘??’? ???.
‘?? ??’? ‘??? ??’(35.0%)? ‘??’(14.7%)?? ??, ??? ??? ????(?? 19.0%〈 ?? 41.3%). ?? ‘?? ?? ??’? ??? ??? ‘??’(12.9%)?? ‘??’(37.7%)? ??, ??? ??? ‘??’(24.1%)? ‘??’(20.7%)?? ???.
‘??’? ??? ??? ‘??’(27.2%)? ‘??’(29.3%)? ????, ??? ‘??’(30.5%)? ‘??’(24.3%)?? ???.
???? ???? ??? ?? ??(34.0%)? ??(23.5%)?? ??, ??? ??? ????(?? 22.2%〈 ?? 36.9%). ?? ??? ???? ??? ??? ‘??’(30.2%)? ‘??’(22.4%)?? ??, ??? ??? ??(29.4%)? ??(23.9%)?? ???.
2001? 11? ?? ???? ??? ?? ??(30.2%)? ??(19.4%)?? 10.8%??? ???? ?? ???? ‘??’(29.5%)? ‘??’(23.0%)?? 6.5%??? ?? ??? ????.
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