??? 2001? ?? ??? 4~6? ??????? ???? ???, ??? ???? 2001? 157??? 2002? 98?, 2003? 57??? ????? 2004? 75?, 2005? 93? ? ???? ????.

?? ???? ?? ??? 40?? 44.3%, 30?? 41%? 30¤40?? ??? 85.3%? ???? ???? ??(78.7%)? ??(21.3%)?? ?? ???.

???? ??? ????? 21?(17.2%)?? ?? ???, ??? ?? 20?(16.4%), ?? ?? 17?(13.9%), ????? ???? 15?(12.3%) ??? ? 36?(29.5%)? ???? ??? ???.

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