?????????????????

??2?17????? ??????????????(????????????????“???”)17????????,?37.7%????????????????,??????2????

????????????????????????????????,?????????,?“?????????”,??

????????????,??35?????,?????????????5?????????????????,???????????,????????,??,?????????

??????????,????????????????????????,?(54.3%)???????????????????????,??2??????,???????????????????????????3.5????????????????

?????,????,????????????????,????(46.6%)??????????

????????????????????“???????????”???????????,??????????????????,??????12?17?12.5%??18.4%,??????????????????????,???????????(??????) ????:????????????????????