???????????????6???????17? (?? ?)17???????????,?????????(?????)?????????,??????,???????“??”?????????,??3.31??,??????2708??????,53%???

??????????,“??????”???4.8????,??12.8??????,??????????1978??5.05%??13.84%??????4???????????????,???????????515??????1000???????????,???????2004??74.1%?????????????2019?????62.3%???10?,??9.2??????????,??????????30???12.5??,??????????????????????????

???,?1997?????????«??»???,???????«?»??,??,???“??”,“?”????????????,??,??????????,?????????????“???????????”?(??) ???:??? ??“?????50??”

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

????:1??????50??:????vx???

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???????????????6???????17? (?? ?)17???????????,?????????(?????)?????????,??????,???????“??”?????????,??3.31??,??????2708??????,53%???

??????????,“??????”???4.8????,??12.8??????,??????????1978??5.05%??13.84%??????4???????????????,???????????515??????1000???????????,???????2004??74.1%?????????????2019?????62.3%???10?,??9.2??????????,??????????30???12.5??,??????????????????????????

???,?1997?????????«??»???,???????«?»??,??,???“??”,“?”????????????,??,??????????,?????????????“???????????”?(??) ???:???