The numbers are based on the Census Bureau's American Community Survey.

这一数字是基于人口普查局的美国社区的调查。

Beginning this week, more than 3 million U.S. households will be asked to respond to the American Community Survey online.

本周开始，超过300万美国家庭将被要求在线进行美国社区调查。

The information comes from the U.S. government's American Community Survey.

这些信息来自美国政府的美国社区调查。