???2009???,??????????????,??????????????,??????????????????????????????????????????,??19????????,??“??????????”???????????????,???:???(??? ????? ?? ???? ?? ?? ? ???????? ??)
????????:?????
???????10????3-2????????
??3?????????0.2%
????????????????????
??????????????8???
???????8?17??????????4??
????????????????????
????1?????????????????
?????????68?????????????
??????????????????
???????100??????????1500
50???????????:?????????
PPI??5????????????
??:???????????????
???????????????:??????????
????????????????????
?????????????????
??:???3???1???1????????
???????8?17??????????4??
?????????68?????????????
?!????????????
??:??????????????????
???????100??????????1500
????????????470?:???3?1?
??????????????????????
OPEC??2017?????????