| http://www.w3.org/ns/prov#value | - ture and the oil boom, economists say.A couple of important footnotes are in order, however: Farming, valued at almost $5.3 billion in 2012, the most recent figures available that show categorical breakdowns, more than doubled oil and gas extraction, at $2 billion.Also, economic activities closely tied to agriculture, including food processing, are grouped under manufacturing, a category totaling
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