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

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

3???????

4????????

5???????vx

??2???5?????? (???????????? ??????????)??5???????,????????????1??????(PMI)?????51?????????4????????????50??????????????,????,??

?????????,1???????????,??,??????????,??9??????,???????????,??;????5??????????,??

???????????????????(Tim Moore)????????????,???????,??????????????,??1????????,????????????????????(??????)

???:?????