Source: US. Bureau of Economic Analysis
Release: State Personal Income (Quarterly)
Industry based on North American Industry Classification System (NAICS). Please consult the U.S. Census Bureau (http://www.census.gov/eos/www/naics/) for additional information about NAICS.
US. Bureau of Economic Analysis, Utilities Earnings in Wisconsin [WIEUTI], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/WIEUTI, July 30, 2016.