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

2?????

3????????

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