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

2??????????

3??????

4??????????

5???????

?????7?1???????????? (??????????????? ??????????)?????7???,????????????A??????????,???,????????????????????1%,????????????????????????????3000???

???????????,????????2994?,?0.92%;??????????8899???????,??0.57%;???1682?,????????????0.04%?

???,??A???????????,????????????????,???,???????????,????????????????,?????????,???

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

?????,??????A?????????????,????????????????????4.05%????3.7%,??????

?????????7????,????????????????,??????????,????????????A??????????????,?????????????,????????,A??(??) ??:???????