I was a team leader for the 2010 census. Do I believe the census was 100% accurate? No, why? You can't get every house in the US, some refuse to answer, others lie on it (I don't understand why). Some of the team leaders encouraged their people to fill in forms for people they couldn't find. (I found out that their boss got some kind of bonus.
I did the best I could to get accurate numbers.
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