??????????????????:???

????:????300??500??:??9598??

???12?????19???? (?????????????? ?????????????????????)?19????????,???????????

????????????????,?????????????,??????49.9%??????????????????????????????????,???,????????????????

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

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

?????????????????,??????????,??????????????????11?44.3?????,??3.5%?(???????) ???:?????