18??2018????绰????21??????1.63?Σ?2.5%??????仯·?????????17.2%28%
??й?????????“???”“??”??????
?????·?????????????г??532???·????????·??棬??к2.32?Σ?12%?′?з??仯???е?緽??????????
?????????????Ρ??????????·???????ν?У???·???????????ú????????????????
?????е????????“??”“??”?
2018???“90”?18?ζ??????“90”??е??40%
“???????浽????????￡???????????????”й·???????
???“?”“?ú”???й?????????1?????缰?仯?䴙·?μ??????????????( )