Source: US. Bureau of Labor Statistics
Release: Consumer Price Index
US. Bureau of Labor Statistics, Consumer Price Index for All Urban Consumers: Education and communication commodities in Size Class D (under 50,000 persons) [CUURD000SAEC], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/CUURD000SAEC, August 25, 2016.