<http://schema.org/about>
"The 2010 Census has already swung into action but it will take months to print all the questionnaires. At a rate of 1.5 million a day, it will take from now until March of next year, to crank"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/us-census-starts-printing-eco-friendlyish-forms.html>