>> “of food as such low prices” <<
.
I’d like to know where.
Certainly not in grocery stores, where most prices of meats have doubled in two years.
There is no doubt that food prices have gone up considerably, so these numbers (going by memeory here) are a little dated;
from 1970 through 2009, food costs, as a percentage of income, fell by 30%, from just over 14% of income to just under 9% of income.