???????????? ?????7???

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

?8?????16?? (?)??,??????????,?????,???????????????2019?????11.9%?9%?????????18.7%,???????7???????,??

??????????????,?????,??????????4335?????????????????,???262???16????,?????????????????,?????10?????

??????????,???????????,????0.0016??0.01,???????????????1/3?????????????1/10?

?????????????????,??19??????????????????????????????????????,?????????20%? ???????:????????