См.: Bureau of Labor statistics, Table A-4, Employment status of the civilian population 25 years and over by educational attainment, seasonally adjusted, February 2012, (http://www.bls.gov/news.release/empsit.thtm, дата обращения 25.03.2012) и Bureau of Labor Statistics, «College Enrollment and Work Activity of 2010 High School Graduates», (http://www.bls.gov/news.release/hsgec.nr0.htm, дата обращения 25.03.2012).
