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1000 55000<br />
800 50000<br />
600 45000<br />
400 40000<br />
200 35000<br />
30000<br />
USD Hectograms<br />
(inf. adj.) per Hectare<br />
Figure 2: Global Trends over Time in Yield, Cultivated Area, and Prices for Ten<br />
Major Crops<br />
1970 1975 1980 1985 1990 1995 2000 2005<br />
Year<br />
Yield Cultivated Area Prices<br />
750000<br />
690000<br />
640000<br />
590000<br />
540000<br />
Hectares<br />
(thousands)<br />
Rudel et al. In review
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