It is, shall we say, interesting?
I have 3 kids and 1 wife and between the 5 of us, we spend roughly half on groceries of what you just quoted
Now, my oldest will be 13 next month so the other two don't eat too much, but it's still a big difference
I see we both live in Michigan, FWIW, I shop at meijers
I wonder if my family eats our more then yours, that could skew the numbers, but we really don't do that a lot iether