????:1???sn??:??92?95?98??????

2?????????t???

3?????9295?????

4??????

5???????

??????(??):????11????????22?????????,????????????,????????????9461???????????????????,?????6.7%?????????????????,??,?,?????

?????????,??????,??????????1.65%,????9.6%?????,??????????????????

????????,???????????,?????????1245????,??????4%???,?????????????????? ???:?????