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??2?21??? ???????????????20???????????????,?????????
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?????????????,??????????????????????????????2011????,???????????61.8??????????,11.3?????????????????????8000?????,??33%??????????90%,????????????????
?????????????????????????????,???????????????????????????????,?,??????????????570???????????????????,??????????,??????,???????????????????????????,??????????????40%??????????????50%???????6????15?????????????????????????????????????????,????70%?????,????80%,????????75%,???????????????????????????,????,????1400?????????
????,????????,??????2018???????????2024??????,???????????????1.3%,??????????????????,???????????55???????????????????????????15???????,????5%?
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