7? ???? ??? 3? ?? ??? ??????? ??? ?? ?? ?? 14? ?? 4?4?73?? ?? ?? 4?36???? ????. ?? ???? ?? △20? 22.1% △30? 30.6% △40? 24.1% △50? 20.9% △60? ?? 2.3% ? 20, 30?? ??????? 52.7%? ??? ???.

20? ???? 97?? 10.2%?? ?? 1? 16.4%, 2? 19.1%, 3? 22.1%? ???? ?? ?? ????.

? 30?? 97?? 24.4%?? 3?? 30.6%? ??? ?? 40?? 50?? ????? ???.

???? ??? 31.4%? ??? ?? 5.8%? ???? ?? 20?? 35.4%? ????.

??? ??? ???? ?????? ??? ?? ??? ???? ???? ????? ??? ??? ?? ?? ??? ???? ?? 20? ??? ?? ????? ?? ??? ??? ???.

???????? △???? 54.2% △?? 17.4% △???? ?? 15.9% ??? ???? ????? ?? ?? 87.5%? ????? ???.

〈?????〉