????:1?????????:??????VX

2?????????

3?????

4????????

5??????

???????11???22????????????????????? (?????????? ???)??22????,9????????????105,??;??1.2%,??????14.4%,???

????????????,?????????????20??(??????????????????)?????,??????,???

??,???13????,????????????????????????????

????????????,19??(??)??123,????,???????18?????????????????????????,??????????,19?(??)?????2.5%,???28.7%????????????????????????????????????????????????????????????????????

“??????”?????????????????????????????????(??????) ??:??????????