I wonder what the numbers are? by this definition (which is a pretty cool one) what percentage of the country (who are in their 40s or above) are not middle class?

I pick that because of the focus on housing. many take a while to be able to buy. just checked, Google says 65.8% own a home... hmmm.

so I wonder. (I don't have much of a clue, living in SF, everything here is just weird.)