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

2?????????

3????????

4?????????vx

5????????

???12?????????20???? (??????? ??)???????20?????????????,11??????(PCE)???0.1%,?2.4%,?????????,?????

PCE???,??????

??,??????????????????,11??PCE???0.1%,????????????????2.8%,???

?????????,11???0.2%,?????????????,???????????0.2%,?????????????0.2%???,11?0.3%;????????0.4%;?????????????4.4%?

??,11?????????????PCE????,2.4%?????????2%??????????????

?18?,????25??????????4.25%??????????4.5%???????????????9????

???18?????????,???????????????????100?????????,????????????,???????????????20?PCE????????,????????????????(????????) ?????:????????