headcount at hogwarts

i did a story on the U.S. Census 2010 back in march. did they pick April 1st as "census day" knowing the jackasses of the world know it as April fool's day? i predict some major nonsensical answers and falsified forms to ensue: what?! a 116-year-old wizard lives there? and so do 100 house-elves? and a phoenix? this is sketchy, yet sounds so familiar..