Husbands=Housework?

Mikaela says:
Courtesy Slate, a new study says that having a husband means more hours of housework, whereas for men, having a wife means saving an hour of housework a week.

Note, however, that things are better now than they were 30 years ago in terms of the balance of work between wives and husbands. My inner Virgo kind of loves that everyone (except single men -- ahem) is spending at least 10 hours doing housework, despite all our "advances" in cleaning technology. Hear that, Swiffer??? I shake my fist at you, holding your amazing duster in my other hand!

Anecdotally, does the graph below hold true for you all?