As my wife is German and my in-laws are visiting, we had a good laugh about it.
Formerly East Germans have a less than stellar reputation.
My wife also wished that the research had included a question of religious affiliation, as Germany is split between Protestant and Catholic regions, and she felt that there might be a similar statistical significance along those lines.
I don't care to offend either group by revealing her suspicion. As a Baptist, I only support the Pope when he's rightly dividing the Word of Truth, but don't recognize him enough to feel there is anything to Protest against.