Normally this is my comment. And I contrast that agricultural yields sure as hell never change by a factor of 4... so I looked up Guatemala, and was surprised:

Normally this is my comment. And I contrast that agricultural yields sure as hell never change by a factor of 4... so I looked up Guatemala, and was surprised: https://www.indexmundi.com/agriculture/?country=gt&commodity=wheat&graph=production https://www.indexmundi.com/agriculture/?country=gt&commodity... It looks like they essentially stopped growing wheat at all in the 90s. (And started growing soya, in similar quantities.) But maybe they don't eat wheat, corn is 40x larger, and growing, doubled since 1960 -- but not keeping up with population. With a sharp drop in 2018, back to 2011's levels: https://www.indexmundi.com/agriculture/?country=gt&commodity=corn&graph=production https://www.indexmundi.com/agriculture/?country=gt&commodity...