"But what they don't plot it against is the average family spend on chips and beer, I bet insurance isn't higher than "convenience" food and alcohol..."
Hmm, we must pay £65 a month to insure the 2 cars, don't know how much we spend of vegetables every month as it just gets spent with the weekly shop.
I do know that we give Sky £90 a month, and eat Chinese / Pizza / junk food of some sort twice a month, so in my case that is probably still true even though I don't drink beer very often (maybe £3 ave on beer every month).