0.013 Total: 1.000

Total commodity value is $546,967,706,426 (1989-1991 international dollars, 1998 production).

Only crops for which international price data are available are considered. Hence, some relatively minor crops, such as paprika, are excluded.

Normalized to sum to one by dividing each instance of a primary center for a crop by the number of primary centers for that crop (i.e., for a given crop, the weight assigned to a primary center falls as the number of primary centers increases). Imposing this normalization provides the measure with a cardinal interpretation.

Table 10-3. OECD value of agricultural production ascribed to primary centers of diversity (expressed as a fraction of total OECD value of agriculture at the farm gate)"

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