It’s quite interesting to know what an average family consumes in a week and how much it costs them. Happened to watch this photo feature on Time.com
Though the feature is well spread out it should have come out well if they could target a more diverse sample that included families from the developing and under developed countries. Only two families in the entire feature actually do away with less than US$6 per week for their food.
Aala Santhosh Reddy 
If you want to see the real deal, get the book.
This didn’t help me at all. I’m looking for an answer here. Ugh. Why can’t I find anything??!!