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

2???????????

3?????????????vx

4???????

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

25??????????,???,???????,??????????????????????????????????????

???1999??,?4??????????,??????6%????????,???????,?????????????????,??????????2023???????,???????????????2.7%,????2???,????1.7%,?????????

?????????????????15????????????,?????????????10????,???????????????????95%?

????????,??????????????,?????????????65???????????????????????????????????????????????????,?????????????????

????65??14%,????????????????????????????,?9000?????,??65????????????,??????6200???????????

???,????,????,??????,??????????????????20?,?????57117????????,95%???

?????????2008?????,?????????,???,????????????????????60%??????????????,????????????????(??????????????) ????:????????????????