Ọnụahịa ndị a natara

Ọnụ ahịa a na-enweta index bụ ndeksi na-atụ mgbanwe n'ọnụ ahịa anatara maka ihe ọkụkụ na anụ ụlọ n'ime United States. National Agricultural Statistics Service na-ebipụta ndenye aha ugbu a na 1990-92 = 100 base. Oke ọnụ ahịa enwetara index na ọnụ ahịa a kwụrụ na 1990-92 ntọala nke karịrị 100% na-egosi na ọnụ ahịa ngwa ahịa ugbo abawanyela n'ọsọ ọsọ karịa ọnụ ahịa ntinye ugbo. Mgbe oke ruru ihe na-erughị 100%, ọnụ ahịa ntinye ugbo na-abawanye ọsọ ọsọ karịa ọnụ ahịa ngwa ahịa ugbo. A na-eji ọnụ ahịa index na ọnụahịa akwụrụ iji gbakọọ nha nhata.

 Hụkwa 

 Ọnụahịa a kwụrụ

 Ebem si dee 

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