Source: US. Bureau of Labor Statistics
Release: Consumer Price Index
US. Bureau of Labor Statistics, Consumer Price Index for All Urban Consumers: All items less medical care in Midwest - Size Class D (under 50,000 persons) [CUUSD200SA0L5], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/CUUSD200SA0L5/, June 3, 2015.