????:1??????:?????????

2???????

3???????

4?????????

5?????vx

??12??18?? (???????? ??????)??18??,????11??????????????????,????????????,???,????????????,??????????????

???,????,1???11????,???30727.49??,???10%???????,???????????13521.21????,??????????????12.1%;???9709.69???,????????16.7%?

?,?????,1??????????11???,???????????6966.74??????????????????,???????21.2%??,?,??,??????????????????56.4%?87.2%?

??,???,1????????11????,????8.54??????????,????2.7%??????????????????????,??16.1%?

??,1??11????????????,?6.28???????????2425.46?,?1.7%????4.4%???????????,???????????????,??17.8%?11.7%?(???) ?????????:?????