????????:??????30.1% ??

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

?6?????????????17??? ????,??17??,?????????????Realmeter???,??????30.1%,????66%?

??????,Realmeter???10???????14????18???2504?????????,??30.1%,?1.4????,??????10?30%~35%??;??66%,?0.9????????

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