January 2015 (Including 2014 Annual Averages and Second Half 2014 Semiannual Averages)
United States. Bureau of Labor Statistics. "January 2015 (Including 2014 Annual Averages and Second Half 2014 Semiannual Averages)," CPI Detailed Report (January 2015). https://fraser.stlouisfed.org/title/58/item/487464, accessed on April 24, 2024.
Bureau of Labor Statistics