2010? ??… 60? ?? 70%
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15? ???????(KDI)? ‘???? ??? ?? ????’ ???? ??? 2010? ?? 1?? ??? ????? 50% ??? ???? ??? 1? ??? ???? ??? 23.6%, 2? ??? 31.3%? ?? ????? 54.9%? 1, 2? ????. 2006? 1, 2? ??? ??? 46.9%? ?? ???? 4? ? 8%??? ??? ???.
?? 1, 2? ?? ??? 60? ??? 70%? ??. 2010?? ???? ???? ?? 1? ??? 72.0%? 60? ????, 2? ??? 68.2%? 60? ?????.
????? ??? 1, 2? ??? ??? ?? 1, 2? ?? ??? ??? ??? ??. 2010? ???? 2? ??? ?? ??? 24.3%? ??? ?? ????, ?? 1?(23.9%), 4?(22.5%), 3? ??(21.3%)? ????. KDI? “????? ?? 3, 4? ???? 1, 2? ?? ???? ???? ? ?”??? ????.
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