????:1???????????:???????95?

2???????b?????

3?????

4??????498

5???????????

????6??19?? (??????????????? ???)????????19????????,????5????????????????,????????1.2213??(1????157????)???

????,5?????8.2766??,??????????13.5%,??5??,????6????????????????????????????????????13.6%?45.9%?24.0%?

????,5????9.4979??????,????9.5%????39.8%?8.1%????5????????1.2213???,????11.6%?

???,5???,????????4736??????,??????10.9%;?????2716????,??91.6%;???????270????????(?????????) ??:??