Updated file
Latest file version
Updated a dodgy formula, and added in "number of food producers" column.
Note that "number of food producers" is only the number that are producing and preparing local food. You can see in bigger population centers that not very many people are "producing food". Imported food probably also needs "produced" by people in the location (e.g., grocers, bakers, etc.) unless you assume the "food producers" from the source location are traveling and selling the food themselves. (I.e., this is one point where the model breaks down a bit.)
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