Glancing at the sources a little, I see where they get their numbers. Not sure it's all that accurate - no one asked me about our income level or my husband's occupation. Still, it makes a little sense as to where some of this comes from. Nevertheless, it's a quicky reference for the naysayers, I guess. ;)
[Sorry about the overlap here into the sidebar. The image doesn't give me a lot of choices. It's ok, you can see it.]

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