Also related to that graph, which I'm sure does not take into account, are the now more and more woman in the workplace.

Up until a time in history it was social doctrine that woman should stay home and tend the home and children and solely rely on the husband for income. This is not the case today and a 2 income family now has more incoming coming into the house which would increase those figures. Are 2 income families now the top 10% and should we piss on their parade?

This also, in my opinion, has led to the increase in social issues around our countries youth but alas I will stay away from those for now.