79% of Americans Know that the Earth Revolves Around the Sun

Americans are often criticed for their lack of geographic knowlege, but a recent poll shows that 79% of Americans know that the Earth revolves around the Sun:

Probing a more universal measure of knowledge, Gallup also asked the following basic science question, which has been used to indicate the level of public knowledge in two European countries in recent years: "As far as you know, does the earth revolve around the sun or does the sun revolve around the earth?" In the new poll, about four out of five Americans (79%) correctly respond that the earth revolves around the sun, while 18% say it is the other way around.

It must just be confusion about the question, or people trying to be funny. I can't believe that the numbers are accurate. :confused: