An average worker could afford slightly less than ten kilos of carrots per day at the turn of the twentieth century, while he could afford nearly sixty kilos per day at the turn of the twenty-first century.14 For other foodstuffs, however, such as milk, butter, eggs, and dairy products in general, major technological advances in processing, manufacturing, conservation, and so on led to relative price decreases and thus to increases in purchasing power greater than sixfold.
