???45??????????????

????:???????vx?????:?????????

??2????5??????????? (??????????? ?????????????)????(?????“??”)5?,?(1??????????28??????????????2????????4?),?45???????????,???24.4%????????,??2.9??,????????????????????28%?

??????,???????????1?25????????1??26?????7?,???1?????????????24?????2???????????????4????,?28.8?,??2.4???,???26.3%?????????????,?9.8???,????45.2%,????????1.6?,??????????????36.4%?

2??????????4????????????,????????????,???????????3.2?????????,??2????????6?????,???,????????,????

?????????????????????,???240?,???240??,?,?????

?????????,???????????,???????????????????,????????????(??????????????) ??????????:??