I wonder how Al Gore would score on this quiz?

The Ecological Footprint Quiz attempts to answer the question, How many planets would we need to support Earth's current population if everyone lived like you do?

I realize this quiz is aimed at guilt-manipulating the average person into adopting a Luddite vegan lifestyle, but what about the above-average person? I scored a respectable 5.1 planets (which is slightly below the American average). How many planets would we need if everyone lived like eco-savior Al Gore?