Some of the following statistics sites were submitted by students.

(Posting these sites does not endorse them. It is your responsibility to be certain that you use RAW data.)

http://www.agingstats.gov/agingstatsdotnet/Main_Site/Data/2008_Documents/tables/Tables.aspx

http://www.census.gov/

http://www.socr.ucla.edu/

http://www.statsci.org/datasets.html