????:1???????:?????????????

2????????

3?????????????

4????????????

5???????100?????

??????????10??21?????? (???????? ????????)????21?????????????,???,???6.75?????(?????,?????????????),?????????????????????11.1%?????????????????,??4.39????,?????9.1%;????2.36??,???15%?

??,???????,?????????????,???,??,???????????

??,???,???????,???1.08?,??10.1%;????????????????????15.3%?7.3%?5.5%????16.3%???,???“??”????2.47??????,?9.8%?

????,??4.3???????????,????????17.1%,????6?????????,???????????63.6%,??3.2?????

??????,????,?????????????????????????????????????,???“???”“???”????,???,???????????(??) ???????:??????????????