???????? 22? ‘????? ?? ??? ??’??? ????? “?? ????? ??? ??? ?? ????? ?? ????? ????? ?? ??? ??? ????? ???? ?? ?”??? ????.
????? 89~97? ??? 17~20????? ????? 98???? 10????? ??? ???????(OPEC) ???? ????? ?????? ?.
??? ??????? ???? ??? ???? OPEC???? ?? ????? ?????? ???? ???? ??? ?? ??? 25???? ????? ?? ??? ????.
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